"Sun, 08 Dec 2024 18:42:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241208
Only TIME
18:42:20
General datetime
2024-12-08 18:42:20Z
For Database
2024-12-08 18:42:20
For HTTP1.1
Sun, 08 Dec 2024 18:42:20 GMT