"Sat, 20 Apr 2024 16:08:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
16:08:19
General datetime
2024-04-20 16:08:19Z
For Database
2024-04-20 16:08:19
For HTTP1.1
Sat, 20 Apr 2024 16:08:19 GMT