"Sat, 17 Jan 1970 18:12:08"

Convert date and time to unixtime.

1447928

Another datetime format string at UTC

YYYYMMDD
19700117

Only TIME
18:12:08

General datetime
1970-01-17 18:12:08Z

For Database
1970-01-17 18:12:08

For HTTP1.1
Sat, 17 Jan 1970 18:12:08 GMT


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