Lunar day 15: the serpent — meaning and dates

The character of lunar day 15

The serpent is the old emblem of temptation and of shed skin, and the fifteenth lunar day usually falls on the full moon or right beside it, when the light is total and nothing is hidden. The tradition reads it as a day of strong pulls — appetite, desire, the wish to have everything at once — and as a test of whether one's word holds under that light. The tradition hears feelings running high around the full moon; what was ambiguous becomes obvious. The day is not a punishment but an exposure: it shows what we want, and asks what we do about it.

What the day favors

The day favors keeping promises that have become inconvenient, saying no to what is tempting but wrong, and looking honestly at what the full light reveals. It suits celebrations kept within measure, sincere conversations, and acknowledging openly what has been achieved since the new moon. Standing by your word in bright light is the gift of the serpent.

What can wait

What can wait is granting yourself an excess because “today it's allowed.” Overindulging, giving in to a craving dressed up as a need, and breaking a commitment because the moment is intense are the shadow of the fifteenth day. The tradition says emotions run loud at the full moon, and that decisions made at their peak often look different once the Moon wanes.

With other people

With other people, the full-moon day can run hot, the tradition says: feelings are amplified, and small slights look large in the bright light. Honesty is easier than usual and also sharper than usual. It is worth saying true things kindly, keeping promises made to the people closest to you, and leaving arguments that start late at night until the morning.

The question of the day

The day asks what you are hungry for right now — and whether it is the thing itself or the relief of giving in.

When lunar day 15 falls

The dates in this table count lunar days (also called moon days) from the exact new moon, the same moment everywhere: day one is the first twenty-four hours after it — a table read anywhere cannot follow one horizon. The line at the top of the page counts the traditional way, from moonrise where you are, which can be up to a day apart. How the lunar day is counted

Times are in UTC.

Begins	Ends
February 1, 2026 at 19:53 UTC	February 2, 2026 at 19:53 UTC
March 3, 2026 at 12:02 UTC	March 4, 2026 at 12:02 UTC
April 2, 2026 at 01:24 UTC	April 3, 2026 at 01:24 UTC
May 1, 2026 at 11:52 UTC	May 2, 2026 at 11:52 UTC
May 30, 2026 at 20:02 UTC	May 31, 2026 at 20:02 UTC
June 29, 2026 at 02:55 UTC	June 30, 2026 at 02:55 UTC
July 28, 2026 at 09:44 UTC	July 29, 2026 at 09:44 UTC
August 26, 2026 at 17:37 UTC	August 27, 2026 at 17:37 UTC
September 25, 2026 at 03:27 UTC	September 26, 2026 at 03:27 UTC
October 24, 2026 at 15:51 UTC	October 25, 2026 at 15:51 UTC
November 23, 2026 at 07:03 UTC	November 24, 2026 at 07:03 UTC
December 23, 2026 at 00:53 UTC	December 24, 2026 at 00:53 UTC
January 21, 2027 at 20:25 UTC	January 22, 2027 at 20:25 UTC
February 20, 2027 at 15:57 UTC	February 21, 2027 at 15:57 UTC
March 22, 2027 at 09:30 UTC	March 23, 2027 at 09:30 UTC
April 20, 2027 at 23:52 UTC	April 21, 2027 at 23:52 UTC
May 20, 2027 at 10:59 UTC	May 21, 2027 at 10:59 UTC
June 18, 2027 at 19:41 UTC	June 19, 2027 at 19:41 UTC
July 18, 2027 at 03:03 UTC	July 19, 2027 at 03:03 UTC
August 16, 2027 at 10:06 UTC	August 17, 2027 at 10:06 UTC
September 14, 2027 at 17:42 UTC	September 15, 2027 at 17:42 UTC
October 14, 2027 at 02:37 UTC	October 15, 2027 at 02:37 UTC
November 12, 2027 at 13:37 UTC	November 13, 2027 at 13:37 UTC
December 12, 2027 at 03:25 UTC	December 13, 2027 at 03:25 UTC