"Thu, 19 Mar 1970 00:52:52"

Convert date and time to unixtime.

6655972

Another datetime format string at UTC

YYYYMMDD
19700319

Only TIME
00:52:52

General datetime
1970-03-19 00:52:52Z

For Database
1970-03-19 00:52:52

For HTTP1.1
Thu, 19 Mar 1970 00:52:52 GMT

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