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The new moon.

At 04:19:21 UT Wednesday 17 January 2018
the moon’s phase was

NEW

Time Zone:   

Some factors that go into this equation:

Universal Time is 4.33916666666666 in decimal hours.
The Julian date was 2458135.5001.
The sun’s ecliptic longitude was 297.009357510901 degrees.
Its mean anomaly was 13.7846034974 degrees.
The moon’s mean longitude was 318.351648 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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