"Sun, 29 Dec 2024 21:35:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
21:35:35
General datetime
2024-12-29 21:35:35Z
For Database
2024-12-29 21:35:35
For HTTP1.1
Sun, 29 Dec 2024 21:35:35 GMT