New moon dates 2018
- 2018: 12 × new moon — 17 January 2018, 15 February 2018, 17 March 2018, 16 April 2018, 15 May 2018, 13 June 2018, 13 July 2018, 11 August 2018, 9 September 2018, 9 October 2018, 7 November 2018, 7 December 2018.
New moon dates 2018
| Date | Time (UTC) | |
|---|---|---|
| Wed 17 Jan | 02:17 | passed |
| Thu 15 Feb | 21:05 | passed |
| Sat 17 Mar | 13:11 | passed |
| Mon 16 Apr | 01:57 | passed |
| Tue 15 May | 11:47 | passed |
| Wed 13 Jun | 19:43 | passed |
| Fri 13 Jul | 02:47 | passed |
| Sat 11 Aug | 09:57 | passed |
| Sun 9 Sep | 18:01 | passed |
| Tue 9 Oct | 03:46 | passed |
| Wed 7 Nov | 16:02 | passed |
| Fri 7 Dec | 07:20 | 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.