"Sat, 04 May 2024 12:12:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240504
Only TIME
12:12:56
General datetime
2024-05-04 12:12:56Z
For Database
2024-05-04 12:12:56
For HTTP1.1
Sat, 04 May 2024 12:12:56 GMT