"Sun, 29 Dec 2024 13:15:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
13:15:11
General datetime
2024-12-29 13:15:11Z
For Database
2024-12-29 13:15:11
For HTTP1.1
Sun, 29 Dec 2024 13:15:11 GMT