"Sun, 13 Oct 2024 21:38:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241013
Only TIME
21:38:04
General datetime
2024-10-13 21:38:04Z
For Database
2024-10-13 21:38:04
For HTTP1.1
Sun, 13 Oct 2024 21:38:04 GMT