"Sat, 20 Jul 2024 15:21:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
15:21:30
General datetime
2024-07-20 15:21:30Z
For Database
2024-07-20 15:21:30
For HTTP1.1
Sat, 20 Jul 2024 15:21:30 GMT