"Sat, 20 Jul 2024 12:21:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
12:21:00
General datetime
2024-07-20 12:21:00Z
For Database
2024-07-20 12:21:00
For HTTP1.1
Sat, 20 Jul 2024 12:21:00 GMT