"Sat, 20 Jul 2024 18:38:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
18:38:04
General datetime
2024-07-20 18:38:04Z
For Database
2024-07-20 18:38:04
For HTTP1.1
Sat, 20 Jul 2024 18:38:04 GMT