"Sun, 21 Apr 2024 12:35:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240421
Only TIME
12:35:26
General datetime
2024-04-21 12:35:26Z
For Database
2024-04-21 12:35:26
For HTTP1.1
Sun, 21 Apr 2024 12:35:26 GMT