Tritiya (तृतीया) dates and timings in London for 2021
Verified astronomical start and end times for lunar day 18 in London, shown in Europe/London.
13 occurrences found. Each end time is exclusive: the next Tithi begins at that instant.
| # | Starts | Ends | Duration | Crosses midnight |
|---|---|---|---|---|
| 1 | 1 Jan 2021, 4:03 am GMT | 2 Jan 2021, 3:40 am GMT | 23 hr 36 min | Yes |
| 2 | 30 Jan 2021, 4:43 pm GMT | 31 Jan 2021, 2:55 pm GMT | 22 hr 12 min | Yes |
| 3 | 1 Mar 2021, 3:06 am GMT | 2 Mar 2021, 12:16 am GMT | 21 hr 11 min | Yes |
| 4 | 30 Mar 2021, 12:57 pm GMT+1 | 31 Mar 2021, 9:36 am GMT+1 | 20 hr 39 min | Yes |
| 5 | 28 Apr 2021, 9:04 pm GMT+1 | 29 Apr 2021, 5:40 pm GMT+1 | 20 hr 36 min | Yes |
| 6 | 28 May 2021, 5:06 am GMT+1 | 29 May 2021, 2:04 am GMT+1 | 20 hr 58 min | Yes |
| 7 | 26 Jun 2021, 1:41 pm GMT+1 | 27 Jun 2021, 11:24 am GMT+1 | 21 hr 43 min | Yes |
| 8 | 25 Jul 2021, 11:34 pm GMT+1 | 26 Jul 2021, 10:24 pm GMT+1 | 22 hr 51 min | Yes |
| 9 | 24 Aug 2021, 11:35 am GMT+1 | 25 Aug 2021, 11:49 am GMT+1 | 24 hr 14 min | Yes |
| 10 | 23 Sept 2021, 2:24 am GMT+1 | 24 Sept 2021, 4:00 am GMT+1 | 25 hr 36 min | Yes |
| 11 | 22 Oct 2021, 8:00 pm GMT+1 | 23 Oct 2021, 10:32 pm GMT+1 | 26 hr 32 min | Yes |
| 12 | 21 Nov 2021, 2:17 pm GMT | 22 Nov 2021, 4:57 pm GMT | 26 hr 40 min | Yes |
| 13 | 21 Dec 2021, 9:24 am GMT | 22 Dec 2021, 11:22 am GMT | 25 hr 58 min | Yes |
How these timings are calculated
BDA calculates the geocentric angular separation of the Moon and Sun and divides the full cycle into 30 equal 12-degree Tithi sectors. UTC boundaries are converted to the timezone resolved from the listed city coordinates.
Scope: These are astronomical Tithi spans only. This page does not choose a festival, Vrat, Parana, or Muhurta date. Those decisions require their separately certified sunrise-prevalence and observance rules.
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