"Sat, 20 Jul 2024 13:13:55"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
13:13:55
General datetime
2024-07-20 13:13:55Z
For Database
2024-07-20 13:13:55
For HTTP1.1
Sat, 20 Jul 2024 13:13:55 GMT