"Sat, 04 May 2024 21:04:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240504
Only TIME
21:04:01
General datetime
2024-05-04 21:04:01Z
For Database
2024-05-04 21:04:01
For HTTP1.1
Sat, 04 May 2024 21:04:01 GMT