"Sat, 20 Apr 2024 12:12:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240420
Only TIME
12:12:39
General datetime
2024-04-20 12:12:39Z
For Database
2024-04-20 12:12:39
For HTTP1.1
Sat, 20 Apr 2024 12:12:39 GMT