;NL Seasons-Middle N astron.UT ;Cross-Quarter moments are interpolated as the midway points between the Solstices and Equinoxes measured in degrees along the ecliptic. ;For a syntax description see PTBSync Help! ;If you find an error please contact: dewaelheyns(a)gmail.com LANGUAGE=UTF8 IMAGE=Holiday_Northernhemisphere.gif ;IMAGE=Holiday_Pijl-gr.gif COMMENT=Updated September 12, 2014 \n;Northern hemisphere - Universal Time (UT) \nvalid for the years 2001>2030 ;traditional "fixed signs" are commonly: ;Imbolc – Sun at 15° Aquarius [20.1.+15=04.2.] ;Beltane – Sun at 15° Taurus [20.4.+15=05.5.] ;Lughnasad – Sun at 15° Leo [23.7.+15=07.8.] ;Samhain – Sun at 15° Scorpio [23.10.+15=07.11] ;http://hearthandhedge.blogspot.com/2014/11/astronomical-cross-quarter-dates-2015.html 01.1.<2001 =no data before the year 2001 01.1.>2030 =no data yet after the year 2030 03.2.>2000<2002 =Northern hemisphere, astronomical Imbolc 2001 (18:25 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2000<2002 =Northern hemisphere, astronomical Beltane 2001 (10:36 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2000<2002 =Northern hemisphere, astronomical Lughnasad 2001 (10:48 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2000<2002 =Northern hemisphere, astronomical Samhain 2001 (08:22 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2001<2003 =Northern hemisphere, astronomical Imbolc 2002 (00:09 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2001<2003 =Northern hemisphere, astronomical Beltane 2002 (16:22 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2001<2003 =Northern hemisphere, astronomical Lughnasad 2002 (16:36 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2001<2003 =Northern hemisphere, astronomical Samhain 2002 (14:14 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2002<2004 =Northern hemisphere, astronomical Imbolc 2003 (05:58 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2002<2004 =Northern hemisphere, astronomical Beltane 2003 (22:07 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2002<2004 =Northern hemisphere, astronomical Lughnasad 2003 (22:25 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2002<2004 =Northern hemisphere, astronomical Samhain 2003 (20:05 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2003<2005 =Northern hemisphere, astronomical Imbolc 2004 (11:47 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2003<2005 =Northern hemisphere, astronomical Beltane 2004 (03:55 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2003<2005 =Northern hemisphere, astronomical Lughnasad 2004 (04:10 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2003<2005 =Northern hemisphere, astronomical Samhain 2004 (01:46 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2004<2006 =Northern hemisphere, astronomical Imbolc 2005 (17:28 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2004<2006 =Northern hemisphere, astronomical Beltane 2005 (09:41 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2004<2006 =Northern hemisphere, astronomical Lughnasad 2005 (10:01 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2004<2006 =Northern hemisphere, astronomical Samhain 2005 (07:39 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2005<2007 =Northern hemisphere, astronomical Imbolc 2006 (23:21 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2005<2007 =Northern hemisphere, astronomical Beltane 2006 (15:28 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2005<2007 =Northern hemisphere, astronomical Lughnasad 2006 (15:41 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2005<2007 =Northern hemisphere, astronomical Samhain 2006 (13:22 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2006<2008 =Northern hemisphere, astronomical Imbolc 2007 (05:05 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2006<2008 =Northern hemisphere, astronomical Beltane 2007 (21:08 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2006<2008 =Northern hemisphere, astronomical Lughnasad 2007 (21:25 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2006<2008 =Northern hemisphere, astronomical Samhain 2007 (19:09 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2007<2009 =Northern hemisphere, astronomical Imbolc 2008 (10:49 UT) ;Note=Between Midwinter and Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2007<2009 =Northern hemisphere, astronomical Beltane 2008 (02:55 UT) ;Note=Between Midspring and Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2007<2009 =Northern hemisphere, astronomical Lughnasad 2008 (03:18 UT) ;Note=Between Midsummer and Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2007<2009 =Northern hemisphere, astronomical Samhain 2008 (01:04 UT) ;Note=Between Midautumn and Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2008<2010 =Northern hemisphere, astronomical Imbolc 2009 (16:45 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2008<2010 =Northern hemisphere, astronomical Beltane 2009 (08:46 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2008<2010 =Northern hemisphere, astronomical Lughnasad 2009 (08:58 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2008<2010 =Northern hemisphere, astronomical Samhain 2009 (06:42 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2009<2011 =Northern hemisphere, astronomical Imbolc 2010 (22:30 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2009<2011 =Northern hemisphere, astronomical Beltane 2010 (14:32 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2009<2011 =Northern hemisphere, astronomical Lughnasad 2010 (14:45 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2009<2011 =Northern hemisphere, astronomical Samhain 2010 (12:33 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2010<2012 =Northern hemisphere, astronomical Imbolc 2011 (04:20 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2010<2012 =Northern hemisphere, astronomical Beltane 2011 (20:20 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2010<2012 =Northern hemisphere, astronomical Lughnasad 2011 (20:37 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2010<2012 =Northern hemisphere, astronomical Samhain 2011 (09:04 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2011<2013 =Northern hemisphere, astronomical Imbolc 2012 (10:13 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2011<2013 =Northern hemisphere, astronomical Beltane 2012 (02:13 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2011<2013 =Northern hemisphere, astronomical Lughnasad 2012 (02:26 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2011<2013 =Northern hemisphere, astronomical Samhain 2012 (00:10 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2012<2014 =Northern hemisphere, astronomical Imbolc 2013 (15:57 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2012<2014 =Northern hemisphere, astronomical Beltane 2013 (08:05 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2012<2014 =Northern hemisphere, astronomical Lughnasad 2013 (08:21 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2012<2014 =Northern hemisphere, astronomical Samhain 2013 (06:07 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2013<2015 =Northern hemisphere, astronomical Imbolc 2014 (21:55 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2013<2015 =Northern hemisphere, astronomical Beltane 2014 (13:56 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2013<2015 =Northern hemisphere, astronomical Lughnasad 2014 (14:07 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2013<2015 =Northern hemisphere, astronomical Samhain 2014 (11:56 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2014<2016 =Northern hemisphere, astronomical Imbolc 2015 (03:45 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2014<2016 =Northern hemisphere, astronomical Beltane 2015 (19:43 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2014<2016 =Northern hemisphere, astronomical Lughnasad 2015 (19:56 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2014<2016 =Northern hemisphere, astronomical Samhain 2015 (17:44 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2015<2017 =Northern hemisphere, astronomical Imbolc 2016 (09:30 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2015<2017 =Northern hemisphere, astronomical Beltane 2016 (01:34 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2015<2017 =Northern hemisphere, astronomical Lughnasad 2016 (01:54 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2015<2017 =Northern hemisphere, astronomical Samhain 2016 (23:42 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2016<2018 =Northern hemisphere, astronomical Imbolc 2017 (15:27 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2016<2018 =Northern hemisphere, astronomical Beltane 2017 (07:28 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2016<2018 =Northern hemisphere, astronomical Lughnasad 2017 (07:40 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2016<2018 =Northern hemisphere, astronomical Samhain 2017 (05:25 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2017<2019 =Northern hemisphere, astronomical Imbolc 2018 (21:12 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2017<2019 =Northern hemisphere, astronomical Beltane 2018 (13:13 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2017<2019 =Northern hemisphere, astronomical Lughnasad 2018 (13:27 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2017<2019 =Northern hemisphere, astronomical Samhain 2018 (11:18 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2018<2020 =Northern hemisphere, astronomical Imbolc 2019 (03:01 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2018<2020 =Northern hemisphere, astronomical Beltane 2019 (18:58 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2018<2020 =Northern hemisphere, astronomical Lughnasad 2019 (19:19 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2018<2020 =Northern hemisphere, astronomical Samhain 2019 (17:14 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2019<2021 =Northern hemisphere, astronomical Imbolc 2020 (08:55 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2019<2021 =Northern hemisphere, astronomical Beltane 2020 (00:48 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2019<2021 =Northern hemisphere, astronomical Lughnasad 2020 (01:03 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2019<2021 =Northern hemisphere, astronomical Samhain 2020 (22:56 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn ;calculated dates 03.2.>2020<2022 =Northern hemisphere, astronomical Imbolc 2021 (21:49 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2020<2022 =Northern hemisphere, astronomical Beltane 2021 (18:34 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 06.8.>2020<2022 =Northern hemisphere, astronomical Lughnasad 2021 (23:26 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2020<2022 =Northern hemisphere, astronomical Samhain 2021 (17:40 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2021<2023 =Northern hemisphere, astronomical Imbolc 2022 (03:46 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 06.5.>2021<2023 =Northern hemisphere, astronomical Beltane 2022 (00:23 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2021<2023 =Northern hemisphere, astronomical Lughnasad 2022 (05:09 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2021<2023 =Northern hemisphere, astronomical Samhain 2022 (23:26 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2022<2024 =Northern hemisphere, astronomical Imbolc 2023 (09:36 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 06.5.>2022<2024 =Northern hemisphere, astronomical Beltane 2023 (06:11 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2022<2024 =Northern hemisphere, astronomical Lughnasad 2023 (10:54 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2022<2024 =Northern hemisphere, astronomical Samhain 2023 (05:09 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2023<2025 =Northern hemisphere, astronomical Imbolc 2024 (15:17 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2023<2025 =Northern hemisphere, astronomical Beltane 2024 (11:59 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 06.8.>2023<2025 =Northern hemisphere, astronomical Lughnasad 2024 (16:47 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2023<2025 =Northern hemisphere, astronomical Samhain 2024 (11:02 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2024<2026 =Northern hemisphere, astronomical Imbolc 2025 (21:11 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2024<2026 =Northern hemisphere, astronomical Beltane 2025 (17:52 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 06.8.>2024<2026 =Northern hemisphere, astronomical Lughnasad 2025 (22:31 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2024<2026 =Northern hemisphere, astronomical Samhain 2025 (16:41 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2025<2027 =Northern hemisphere, astronomical Imbolc 2026 (02:54 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2025<2027 =Northern hemisphere, astronomical Beltane 2026 (23:35 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2025<2027 =Northern hemisphere, astronomical Lughnasad 2026 (04:15 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2025<2027 =Northern hemisphere, astronomical Samhain 2026 (22:28 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2026<2028 =Northern hemisphere, astronomical Imbolc 2027 (08:37 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 06.5.>2026<2028 =Northern hemisphere, astronomical Beltane 2027 (05:18 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2026<2028 =Northern hemisphere, astronomical Lughnasad 2027 (10:06 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 07.11.>2026<2028 =Northern hemisphere, astronomical Samhain 2027 (04:22 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2027<2029 =Northern hemisphere, astronomical Imbolc 2028 (08:55 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2027<2029 =Northern hemisphere, astronomical Beltane 2028 (11:09 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 06.8.>2027<2029 =Northern hemisphere, astronomical Lughnasad 2028 (15:53 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2027<2029 =Northern hemisphere, astronomical Samhain 2028 (10:02 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 03.2.>2028<2030 =Northern hemisphere, astronomical Imbolc 2029 (20:10 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2028<2030 =Northern hemisphere, astronomical Beltane 2029 (16:54 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 06.8.>2028<2030 =Northern hemisphere, astronomical Lughnasad 2029 (21:42 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2028<2030 =Northern hemisphere, astronomical Samhain 2029 (15:55 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn 04.2.>2029<2031 =Northern hemisphere, astronomical Imbolc 2030 (02:02 UT) ;Note=Between Midwinter & Midspring, Traditional spring begins, Middle of astronomical winter 05.5.>2029<2031 =Northern hemisphere, astronomical Beltane 2030 (22:41 UT) ;Note=Between Midspring & Midsummer, Traditional summer begins, Middle of astronomical spring 07.8.>2029<2031 =Northern hemisphere, astronomical Lughnasad 2030 (03:29 UT) ;Note=Between Midsummer & Midautumn, Traditional autumn begins, Middle of astronomical summer 06.11.>2029<2031 =Northern hemisphere, astronomical Samhain 2030 (21:48 UT) ;Note=Between Midautumn & Midwinter, Traditional winter begins, Middle of astronomical autumn ;These entries were added by: dewaelheyns(a)gmail.com - http://users.telenet.be/wdew/ ;The abbreviations {d} {m} {e} {y} ... are explained on http://users.telenet.be/wdew/Basis%20PTB/BasisEN.htm ;http://www.archaeoastronomy.com/myclock.shtml