"Sun, 18 Jan 1970 12:26:43"

Convert date and time to unixtime.

1513603

Another datetime format string at UTC

YYYYMMDD
19700118

Only TIME
12:26:43

General datetime
1970-01-18 12:26:43Z

For Database
1970-01-18 12:26:43

For HTTP1.1
Sun, 18 Jan 1970 12:26:43 GMT

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