"Wed, 21 Jan 1970 12:26:39"

Convert date and time to unixtime.

1772799

Another datetime format string at UTC

YYYYMMDD
19700121

Only TIME
12:26:39

General datetime
1970-01-21 12:26:39Z

For Database
1970-01-21 12:26:39

For HTTP1.1
Wed, 21 Jan 1970 12:26:39 GMT

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