"Sun, 21 Apr 2024 16:08:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
16:08:26
General datetime
2024-04-21 16:08:26Z
For Database
2024-04-21 16:08:26
For HTTP1.1
Sun, 21 Apr 2024 16:08:26 GMT