"Sun, 21 Apr 2024 08:54:29"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
08:54:29
General datetime
2024-04-21 08:54:29Z
For Database
2024-04-21 08:54:29
For HTTP1.1
Sun, 21 Apr 2024 08:54:29 GMT