"Sun, 21 Jul 2024 18:33:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
18:33:59
General datetime
2024-07-21 18:33:59Z
For Database
2024-07-21 18:33:59
For HTTP1.1
Sun, 21 Jul 2024 18:33:59 GMT