New moon dates 2091
- 2091: 12 × new moon — 19 January 2091, 18 February 2091, 20 March 2091, 19 April 2091, 18 May 2091, 17 June 2091, 16 July 2091, 15 August 2091, 13 September 2091, 12 October 2091, 11 November 2091, 10 December 2091.
- Next: 19 January 2091.
New moon dates 2091
| Date | Time (UTC) | |
|---|---|---|
| Fri 19 Jan | 16:32 | next |
| Sun 18 Feb | 09:39 | |
| Tue 20 Mar | 03:47 | |
| Thu 19 Apr | 21:21 | |
| Fri 18 May | 13:08 | |
| Sun 17 Jun | 02:42 | |
| Mon 16 Jul | 14:17 | |
| Wed 15 Aug | 00:23 | |
| Thu 13 Sep | 09:36 | |
| Fri 12 Oct | 18:30 | |
| Sun 11 Nov | 03:43 | |
| Mon 10 Dec | 13:55 |
Questions people ask
What is a moon day?
A moon day counts the days since the last new moon: the first moon day starts at the new moon, the fifteenth around the full moon. The count on this page is the whole number of days since the last new moon plus one.
Is the moon waxing or waning?
Waxing means the lit part is growing (from new moon to full moon); waning means it is shrinking (from full moon to new moon). In the northern hemisphere a waxing moon is lit on the right.
How are the phase times calculated?
With the algorithms published by Jean Meeus in Astronomical Algorithms (1998), including the periodic terms, which give the phase instants to about one minute.