"Sun, 29 Dec 2024 18:18:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
18:18:45
General datetime
2024-12-29 18:18:45Z
For Database
2024-12-29 18:18:45
For HTTP1.1
Sun, 29 Dec 2024 18:18:45 GMT