ZIP Code 51104 Time Zone
Sioux City, Iowa
Current Local Time
10:47:50
Friday, October 30, 2026 in Sioux City
Time Zone Details
| Time Zone (IANA) | America/Chicago |
|---|---|
| UTC Offset | UTC-5 |
| Daylight Saving Time | Observed The UTC offset changes during the DST period. |
Frequently Asked Questions
ZIP code 51104 (Sioux City, IA) is in the America/Chicago time zone (UTC-5).
Yes, Sioux City observes daylight saving time.