"Sat, 20 Jul 2024 19:20:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
19:20:00
General datetime
2024-07-20 19:20:00Z
For Database
2024-07-20 19:20:00
For HTTP1.1
Sat, 20 Jul 2024 19:20:00 GMT