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The full moon.

At 23:09:06 UT Saturday 31 March 2018
the moon’s phase was

FULL

Time Zone:   

Some factors that go into this equation:

Universal Time is 23.1683333333333 in decimal hours.
The Julian date was 2458209.4974936.
The sun’s ecliptic longitude was 11.190187982429 degrees.
Its mean anomaly was 86.5101487781 degrees.
The moon’s true longitude was 3076.92944355252 degrees.

These calculations incorporate the switch to the English New Style (N.S.)—i.e., Gregorian— calendar after Wednesday, 02 September 1752; the next day became Thursday, 14 September, skipping eleven days. (Please also note that, while fairly accurate, these calculations remain a bit buggy.)

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