"Sat, 20 Jul 2024 06:25:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240720
Only TIME
06:25:15
General datetime
2024-07-20 06:25:15Z
For Database
2024-07-20 06:25:15
For HTTP1.1
Sat, 20 Jul 2024 06:25:15 GMT