"Sun, 01 Dec 2024 20:15:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241201
Only TIME
20:15:05
General datetime
2024-12-01 20:15:05Z
For Database
2024-12-01 20:15:05
For HTTP1.1
Sun, 01 Dec 2024 20:15:05 GMT