"Sun, 21 Jul 2024 15:59:50"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
15:59:50
General datetime
2024-07-21 15:59:50Z
For Database
2024-07-21 15:59:50
For HTTP1.1
Sun, 21 Jul 2024 15:59:50 GMT