Tuesday, December 21, 2010

Summer starts officially... tomorrow!

Image courtesy timeanddate.com

I know, I know! You are probably saying that Summer Solstice (for those in the Southern Hemisphere), or more generally, December Solstice, is today at 23:38 UTC (11:38pm).

However, if you live where I live, South Africa (or further east), Summer Solstice, which marks the official start of summer in the Southern Hemisphere, only starts tomorrow. In South Africa, Summer Solstice is at 01:38 (1:38am) tomorrow morning, Wednesday, 22 December 2010! New Zealand’s Summer Solstice is at 12:38 (pm), Wednesday, 22 December 2010.

In short, summer will officially start without me knowing about it or experiencing it. I will be sleeping! Well, at 01:38, most sane people are usually asleep. And, hopefully, I am sane!

Image courtesy National Oceanic and Atmospheric Administration

For more on seasons/solstices:
WikiPedia
Eric Weisstein’s World of Astronomy
National Oceanic and Atmospheric Administration

Update:
Added Pretoria's solstice info below.

Year March Equinox June Solstice September Equinox December Solstice
2000 20 Mar 09:35 SAST 21 Jun 03:48 SAST 22 Sep 19:28 SAST 21 Dec 15:38 SAST
2001 20 Mar 15:31 SAST 21 Jun 09:38 SAST 23 Sep 01:05 SAST 21 Dec 21:21 SAST
2002 20 Mar 21:16 SAST 21 Jun 15:25 SAST 23 Sep 06:55 SAST 22 Dec 03:14 SAST
2003 21 Mar 03:00 SAST 21 Jun 21:11 SAST 23 Sep 12:47 SAST 22 Dec 09:04 SAST
2004 20 Mar 08:48 SAST 21 Jun 02:57 SAST 22 Sep 18:30 SAST 21 Dec 14:42 SAST
2005 20 Mar 14:33 SAST 21 Jun 08:46 SAST 23 Sep 00:23 SAST 21 Dec 20:35 SAST
2006 20 Mar 20:25 SAST 21 Jun 14:26 SAST 23 Sep 06:04 SAST 22 Dec 02:22 SAST
2007 21 Mar 02:07 SAST 21 Jun 20:06 SAST 23 Sep 11:51 SAST 22 Dec 08:07 SAST
2008 20 Mar 07:48 SAST 21 Jun 01:59 SAST 22 Sep 17:44 SAST 21 Dec 14:04 SAST
2009 20 Mar 13:44 SAST 21 Jun 07:46 SAST 22 Sep 23:19 SAST 21 Dec 19:47 SAST
2010 20 Mar 19:32 SAST 21 Jun 13:29 SAST 23 Sep 05:09 SAST 22 Dec 01:38 SAST
2011 21 Mar 01:21 SAST 21 Jun 19:16 SAST 23 Sep 11:04 SAST 22 Dec 07:30 SAST
2012 20 Mar 07:14 SAST 21 Jun 01:08 SAST 22 Sep 16:49 SAST 21 Dec 13:12 SAST
2013 20 Mar 13:02 SAST 21 Jun 07:04 SAST 22 Sep 22:44 SAST 21 Dec 19:11 SAST
2014 20 Mar 18:57 SAST 21 Jun 12:52 SAST 23 Sep 04:29 SAST 22 Dec 01:03 SAST
2015 21 Mar 00:45 SAST 21 Jun 18:38 SAST 23 Sep 10:21 SAST 22 Dec 06:48 SAST
2016 20 Mar 06:30 SAST 21 Jun 00:35 SAST 22 Sep 16:21 SAST 21 Dec 12:44 SAST
2017 20 Mar 12:29 SAST 21 Jun 06:24 SAST 22 Sep 22:02 SAST 21 Dec 18:28 SAST
2018 20 Mar 18:15 SAST 21 Jun 12:07 SAST 23 Sep 03:54 SAST 22 Dec 00:22 SAST
2019 20 Mar 23:59 SAST 21 Jun 17:54 SAST 23 Sep 09:50 SAST 22 Dec 06:19 SAST
2020 20 Mar 05:50 SAST 20 Jun 23:44 SAST 22 Sep 15:31 SAST 21 Dec 12:03 SAST
2021 20 Mar 11:37 SAST 21 Jun 05:32 SAST 22 Sep 21:21 SAST 21 Dec 17:59 SAST
2022 20 Mar 17:33 SAST 21 Jun 11:14 SAST 23 Sep 03:04 SAST 21 Dec 23:48 SAST
2023 20 Mar 23:24 SAST 21 Jun 16:57 SAST 23 Sep 08:50 SAST 22 Dec 05:27 SAST
2024 20 Mar 05:06 SAST 20 Jun 22:51 SAST 22 Sep 14:44 SAST 21 Dec 11:20 SAST
2025 20 Mar 11:02 SAST 21 Jun 04:42 SAST 22 Sep 20:20 SAST 21 Dec 17:03 SAST
2026 20 Mar 16:46 SAST 21 Jun 10:25 SAST 23 Sep 02:05 SAST 21 Dec 22:50 SAST
2027 20 Mar 22:25 SAST 21 Jun 16:11 SAST 23 Sep 08:02 SAST 22 Dec 04:42 SAST
2028 20 Mar 04:17 SAST 20 Jun 22:02 SAST 22 Sep 13:45 SAST 21 Dec 10:20 SAST
2029 20 Mar 10:02 SAST 21 Jun 03:48 SAST 22 Sep 19:38 SAST 21 Dec 16:14 SAST
2030 20 Mar 15:52 SAST 21 Jun 09:31 SAST 23 Sep 01:27 SAST 21 Dec 22:10 SAST
2031 20 Mar 21:41 SAST 21 Jun 15:17 SAST 23 Sep 07:15 SAST 22 Dec 03:56 SAST
2032 20 Mar 03:22 SAST 20 Jun 21:09 SAST 22 Sep 13:11 SAST 21 Dec 09:56 SAST
2033 20 Mar 09:23 SAST 21 Jun 03:01 SAST 22 Sep 18:52 SAST 21 Dec 15:46 SAST
2034 20 Mar 15:18 SAST 21 Jun 08:44 SAST 23 Sep 00:40 SAST 21 Dec 21:34 SAST
2035 20 Mar 21:03 SAST 21 Jun 14:33 SAST 23 Sep 06:39 SAST 22 Dec 03:31 SAST
2036 20 Mar 03:03 SAST 20 Jun 20:32 SAST 22 Sep 12:24 SAST 21 Dec 09:13 SAST
2037 20 Mar 08:50 SAST 21 Jun 02:22 SAST 22 Sep 18:13 SAST 21 Dec 15:08 SAST
2038 20 Mar 14:40 SAST 21 Jun 08:09 SAST 23 Sep 00:02 SAST 21 Dec 21:02 SAST
2039 20 Mar 20:32 SAST 21 Jun 13:57 SAST 23 Sep 05:50 SAST 22 Dec 02:40 SAST
2040 20 Mar 02:11 SAST 20 Jun 19:47 SAST 22 Sep 11:45 SAST 21 Dec 08:33 SAST
2041 20 Mar 08:07 SAST 21 Jun 01:36 SAST 22 Sep 17:27 SAST 21 Dec 14:18 SAST
2042 20 Mar 13:53 SAST 21 Jun 07:16 SAST 22 Sep 23:12 SAST 21 Dec 20:04 SAST
2043 20 Mar 19:28 SAST 21 Jun 12:58 SAST 23 Sep 05:07 SAST 22 Dec 02:01 SAST
2044 20 Mar 01:20 SAST 20 Jun 18:51 SAST 22 Sep 10:48 SAST 21 Dec 07:44 SAST
2045 20 Mar 07:07 SAST 21 Jun 00:34 SAST 22 Sep 16:33 SAST 21 Dec 13:35 SAST
2046 20 Mar 12:58 SAST 21 Jun 06:15 SAST 22 Sep 22:22 SAST 21 Dec 19:28 SAST
2047 20 Mar 18:53 SAST 21 Jun 12:03 SAST 23 Sep 04:08 SAST 22 Dec 01:07 SAST
2048 20 Mar 00:34 SAST 20 Jun 17:54 SAST 22 Sep 10:01 SAST 21 Dec 07:02 SAST
2049 20 Mar 06:29 SAST 20 Jun 23:47 SAST 22 Sep 15:43 SAST 21 Dec 12:52 SAST
Season data courtesy timeanddate.com

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