"Sun, 04 Jan 1970 11:20:00"

Convert date and time to unixtime.

300000

Another datetime format string at UTC

YYYYMMDD
19700104

Only TIME
11:20:00

General datetime
1970-01-04 11:20:00Z

For Database
1970-01-04 11:20:00

For HTTP1.1
Sun, 04 Jan 1970 11:20:00 GMT

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