What time is it in area code 623?
Area code 623 is in the Mountain time zone: UTC−7 all year, because Arizona does not change its clocks. It stays on MST (UTC−7) through the year, so the gap to places that do change their clocks shifts by an hour twice a year. When it is 9 am in 623, it is 11 am Eastern, 10 am Central and 8 am Pacific – so a call in business hours here arrives later in the day on the east coast. The code's largest rate center is PHOENIX, as NANPA abbreviates it. Other codes keeping the same time in Arizona: 480, 520, 602 and 928.
Clocks run in your browser from the IANA time zone database, so they stay right between page rebuilds.
Offsets and clock changes
| Zone | Standard | Daylight saving | Changes in 2026 |
|---|---|---|---|
| Mountain | MST UTC−7 | not observed | none |
Other Arizona codes on the same clock
Questions about 623 and time
What time is it in area code 623?
The clock above shows it live. 623 keeps Mountain time, UTC−7 in winter and the same all year.
Does area code 623 observe daylight saving time?
No. Arizona stays on MST all year.
Is 623 the same time as New York?
No. New York is Eastern time; 623 is Mountain (UTC−7 against UTC in winter), so work out the difference from the clock above rather than assuming.
Why does a 623 caller reach me at an odd hour?
Two common reasons. Either the clocks differ by more than you expected – the offset changes twice a year and not everywhere on the same date – or the caller ID is not really 623 at all. Spam callers fake a local-looking number, so the displayed code says nothing about where the call came from.
Sources
- NANPA – NPA Database (npa_report.csv), file date 11/01/2026, retrieved Nov 1, 2026
- IANA Time Zone Database (tzdata), as shipped with this build, retrieved Nov 1, 2026
More about this code: overview · spam complaints · carriers