"Sat, 18 Jan 2025 23:21:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250118
Only TIME
23:21:59
General datetime
2025-01-18 23:21:59Z
For Database
2025-01-18 23:21:59
For HTTP1.1
Sat, 18 Jan 2025 23:21:59 GMT