"Sat, 20 Apr 2024 12:52:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
12:52:54
General datetime
2024-04-20 12:52:54Z
For Database
2024-04-20 12:52:54
For HTTP1.1
Sat, 20 Apr 2024 12:52:54 GMT