"Sun, 21 Apr 2024 16:07:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
16:07:35
General datetime
2024-04-21 16:07:35Z
For Database
2024-04-21 16:07:35
For HTTP1.1
Sun, 21 Apr 2024 16:07:35 GMT