"Sun, 21 Jul 2024 18:03:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240721
Only TIME
18:03:46
General datetime
2024-07-21 18:03:46Z
For Database
2024-07-21 18:03:46
For HTTP1.1
Sun, 21 Jul 2024 18:03:46 GMT