"Sat, 13 Jul 2024 17:18:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240713
Only TIME
17:18:20
General datetime
2024-07-13 17:18:20Z
For Database
2024-07-13 17:18:20
For HTTP1.1
Sat, 13 Jul 2024 17:18:20 GMT