"Sun, 21 Apr 2024 00:28:13"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
00:28:13
General datetime
2024-04-21 00:28:13Z
For Database
2024-04-21 00:28:13
For HTTP1.1
Sun, 21 Apr 2024 00:28:13 GMT