"Sun, 29 Dec 2024 19:40:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241229
Only TIME
19:40:09
General datetime
2024-12-29 19:40:09Z
For Database
2024-12-29 19:40:09
For HTTP1.1
Sun, 29 Dec 2024 19:40:09 GMT