"Sun, 15 Dec 2024 17:26:28"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241215
Only TIME
17:26:28
General datetime
2024-12-15 17:26:28Z
For Database
2024-12-15 17:26:28
For HTTP1.1
Sun, 15 Dec 2024 17:26:28 GMT