"Sun, 29 Dec 2024 18:44:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
18:44:45
General datetime
2024-12-29 18:44:45Z
For Database
2024-12-29 18:44:45
For HTTP1.1
Sun, 29 Dec 2024 18:44:45 GMT