"Sat, 20 Apr 2024 16:07:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
16:07:15
General datetime
2024-04-20 16:07:15Z
For Database
2024-04-20 16:07:15
For HTTP1.1
Sat, 20 Apr 2024 16:07:15 GMT