"Sat, 31 Jan 1970 18:13:14"

Convert date and time to unixtime.

2657594

Another datetime format string at UTC

YYYYMMDD
19700131

Only TIME
18:13:14

General datetime
1970-01-31 18:13:14Z

For Database
1970-01-31 18:13:14

For HTTP1.1
Sat, 31 Jan 1970 18:13:14 GMT


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