"Sat, 04 May 2024 12:12:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240504
Only TIME
12:12:57
General datetime
2024-05-04 12:12:57Z
For Database
2024-05-04 12:12:57
For HTTP1.1
Sat, 04 May 2024 12:12:57 GMT