"Sat, 10 Jan 1970 21:42:18"

Convert date and time to unixtime.

855738

Another datetime format string at UTC

YYYYMMDD
19700110

Only TIME
21:42:18

General datetime
1970-01-10 21:42:18Z

For Database
1970-01-10 21:42:18

For HTTP1.1
Sat, 10 Jan 1970 21:42:18 GMT


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