"Tue, 27 Jan 1970 00:18:58"

Convert date and time to unixtime.

2247538

Another datetime format string at UTC

YYYYMMDD
19700127

Only TIME
00:18:58

General datetime
1970-01-27 00:18:58Z

For Database
1970-01-27 00:18:58

For HTTP1.1
Tue, 27 Jan 1970 00:18:58 GMT

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