"Sun, 29 Dec 2024 13:35:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
13:35:09
General datetime
2024-12-29 13:35:09Z
For Database
2024-12-29 13:35:09
For HTTP1.1
Sun, 29 Dec 2024 13:35:09 GMT