New moon dates 2025
- 2025: 12 × new moon — 29 January 2025, 28 February 2025, 29 March 2025, 27 April 2025, 27 May 2025, 25 June 2025, 24 July 2025, 23 August 2025, 21 September 2025, 21 October 2025, 20 November 2025, 20 December 2025.
New moon dates 2025
| Date | Time (UTC) | |
|---|---|---|
| Wed 29 Jan | 12:35 | passed |
| Fri 28 Feb | 00:44 | passed |
| Sat 29 Mar | 10:57 | passed |
| Sun 27 Apr | 19:31 | passed |
| Tue 27 May | 03:02 | passed |
| Wed 25 Jun | 10:31 | passed |
| Thu 24 Jul | 19:11 | passed |
| Sat 23 Aug | 06:06 | passed |
| Sun 21 Sep | 19:54 | passed |
| Tue 21 Oct | 12:25 | passed |
| Thu 20 Nov | 06:47 | passed |
| Sat 20 Dec | 01:43 | passed |
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.