"Wed, 18 Mar 1970 12:02:59"

Convert date and time to unixtime.

6609779

Another datetime format string at UTC

YYYYMMDD
19700318

Only TIME
12:02:59

General datetime
1970-03-18 12:02:59Z

For Database
1970-03-18 12:02:59

For HTTP1.1
Wed, 18 Mar 1970 12:02:59 GMT

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