On Sunday, March 31, 1991 the Moon was in its full moon phase, with 100% of its disk illuminated and an age of 15.3 days since the last new moon. The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase.
Moon data for this date
| Phase | 🌕 Full Moon |
|---|---|
| Illumination | 100% |
| Moon age | 15.3 days |
| Day of the week | Sunday |
| Last new moon | March 16, 1991 at 05:11 |
| Next full moon | April 28, 1991 at 17:59 (in 28.2 days) |
| Next new moon | April 14, 1991 at 16:38 (in 14.2 days) |
The Moon on the surrounding days
Compare the phase and illumination over the three days before and after. Click a day to open its page.
← March 30, 1991 April 1, 1991 →
About the full moon
The whole disk is lit: the Moon rises as the Sun sets and stays up all night. It is the brightest and most photographed phase. The phase name comes from the Moon's position in its 29.53-day cycle: on March 31, 1991 it had completed 52% of the cycle that began with the new moon on March 16, 1991.
Looking for another date, such as a birthday? Use the Moon phase on the day I was born tool, see the Moon phase today page with the lunar calendar, or find the day of the week of March 31, 1991. For sun times, check sunrise and sunset.