"Thu, 01 Jan 1970 00:03:03"

Convert date and time to unixtime.

183

Another datetime format string at UTC

YYYYMMDD
19700101

Only TIME
00:03:03

General datetime
1970-01-01 00:03:03Z

For Database
1970-01-01 00:03:03

For HTTP1.1
Thu, 01 Jan 1970 00:03:03 GMT