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The new moon.

At 13:25:02 UT Saturday 28 January 2017
the moon’s phase was

NEW

Time Zone:   

Some factors that go into this equation:

Universal Time is 13.4338888888889 in decimal hours.
The Julian date was 2457781.50314965.
The sun’s ecliptic longitude was 308.823986150683 degrees.
Its mean anomaly was 25.23894720804 degrees.
The moon’s true longitude was 315.258439847847 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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