Monterrey to New Castle, DE: time difference
New Castle, DE is 1 h ahead of Monterrey. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Monterrey 12:03 12:03 PM New Castle, DE 13:03 1:03 PM You –:–
12:03 12:03 PM
Central Standard Time · UTC-6
☀️ 06:54 · 🌙 17:58
13:03 1:03 PM
Eastern Standard Time · UTC-5
☀️ 06:37 · 🌙 16:56
·
+1 h
New Castle, DE is 1 h ahead of Monterrey.
When you, Monterrey and New Castle, DE are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇲🇽 Monterrey
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇺🇸 New Castle, DE
1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇲🇽 Monterrey | 🇺🇸 New Castle, DE |
|---|---|---|
| Local time | 12:03 | 13:03 |
| Local date | Friday, November 6, 2026 | Friday, November 6, 2026 |
| Time zone | Central Standard Time | Eastern Standard Time |
| UTC offset | UTC-6 | UTC-5 |
| Offset from Monterrey | — | +1 h |
| IANA zone | America/Monterrey | America/New York |
| Daylight saving | Not observed | On standard time → UTC-4, Mar 14, 03:00 |
| Sunrise | 06:54 | 06:37 |
| Sunset | 17:58 | 16:56 |
| Daylight | 11 h 4 min | 10 h 19 min |
| People on this clock | 1,142,994 | 21,926 |
Compare Monterrey with another city
More comparisons with Monterrey: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Monterrey and New Castle, DE: common questions
What is the time difference between Monterrey and New Castle, DE?
New Castle is 1 hour ahead: it uses UTC−5, while Monterrey is on UTC−6.
What time is it in New Castle, DE, when it is 9:00 AM in Monterrey?
When it is 9:00 AM in Monterrey, it is 10:00 AM in New Castle.
If it is 6:00 PM in Monterrey, what time is it in New Castle, DE?
At 6:00 PM in Monterrey, clocks in New Castle show 7:00 PM.
Is there a time when both Monterrey and New Castle, DE, are at work?
Yes: from 9:00 AM to 5:00 PM in Monterrey (10:00 AM to 6:00 PM in New Castle), the working days (9:00 AM–6:00 PM) overlap.
When does the date change in New Castle, DE, compared with Monterrey?
The new day starts in New Castle earlier: at 11:00 PM in Monterrey it is already midnight there. Until 1:00 AM in New Castle, Monterrey is still on the previous day.
Does the time gap between Monterrey and New Castle, DE, change during the year?
Yes – daylight saving time is used in New Castle but not in Monterrey. From March 14, 2027, New Castle will be 2 hours ahead of Monterrey.
