Offset
The time difference between Cairo and Monterrey is 9 hours.
Cairo (GMT+3) is ahead of Monterrey (CST).
GMT+3: UTC+3
CST: UTC-6
Cairo is currently observing daylight saving time; Monterrey is not.
When to schedule
Standard business hours (9 AM–5 PM, Mon–Fri) in Cairo and Monterrey don't overlap on the same weekday. Monterrey is 9 hours behind Cairo.
With some flexibility, there’s a workable window outside standard hours:
- 4 PM–8 PM in Cairo (7 AM–11 AM in Monterrey) — suggest 6:00 PM Cairo (9:00 AM Monterrey).
This means an early start or late finish for one side, but it’s a reasonable slot for a one-off meeting.
This window may shift by an hour during daylight saving time.
Note: the working week in Egypt runs Sunday–Thursday; Friday–Saturday is the weekend, so overlap on those days is limited.
Public holidays in 2026
National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.
Egypt
- Christmas Day (Orthodox)Wed, Jan 7
- Revolution Day 2011 / National Police DaySun, Jan 25
- Sinai Liberation DaySat, Apr 25
- Labour DayFri, May 1
- June 30 RevolutionThu, Jul 2
- Revolution DayThu, Jul 23
- Armed Forces DayTue, Oct 6
Mexico
- New Year's DayThu, Jan 1
- Constitution DayMon, Feb 2
- Benito Juárez's birthdayMon, Mar 16
- Maundy ThursdayThu, Apr 2
- Good FridayFri, Apr 3
- Labour DayFri, May 1
- Independence DayWed, Sep 16
- Revolution DayMon, Nov 16
- Christmas DayFri, Dec 25
About these zones
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| Cairo | Monterrey | Day |
|---|---|---|
| 12:00 am | 3:00 pm | -1 day |
| 1:00 am | 4:00 pm | -1 day |
| 2:00 am | 5:00 pm | -1 day |
| 3:00 am | 6:00 pm | -1 day |
| 4:00 am | 7:00 pm | -1 day |
| 5:00 am | 8:00 pm | -1 day |
| 6:00 am | 9:00 pm | -1 day |
| 7:00 am | 10:00 pm | -1 day |
| 8:00 am | 11:00 pm | -1 day |
| 9:00 am | 12:00 am | Same day |
| 10:00 am | 1:00 am | Same day |
| 11:00 am | 2:00 am | Same day |
| 12:00 pm | 3:00 am | Same day |
| 1:00 pm | 4:00 am | Same day |
| 2:00 pm | 5:00 am | Same day |
| 3:00 pm | 6:00 am | Same day |
| 4:00 pm | 7:00 am | Same day |
| 5:00 pm | 8:00 am | Same day |
| 6:00 pm | 9:00 am | Same day |
| 7:00 pm | 10:00 am | Same day |
| 8:00 pm | 11:00 am | Same day |
| 9:00 pm | 12:00 pm | Same day |
| 10:00 pm | 1:00 pm | Same day |
| 11:00 pm | 2:00 pm | Same day |
Daylight saving time
Cairo observes daylight saving time; Monterrey does not. The offset between the two zones changes when Cairo transitions: on Thursday, October 29, 2026, clocks fall back from GMT+3 to GMT+2.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:54 AM
- Sunset
- 7:56 PM
- Day length
- 14h 1m
- Sunrise
- 5:50 AM
- Sunset
- 7:32 PM
- Day length
- 13h 41m
Cities in these zones
Other cities in Eastern European Summer Time
Browse all cities to see the current local time anywhere.
Airports in these zones
Airports in Eastern European Summer Time
- CAI
- SPX
- HBE
Airports in Central Standard Time
- MTY
Related conversions
Common conversions
- What is 9:00 am Cairo in Monterrey?
- 9:00 am Cairo is 12:00 am Monterrey.
- What is 12:00 pm Cairo in Monterrey?
- 12:00 pm Cairo is 3:00 am Monterrey.
- What is 12:30 pm Cairo in Monterrey?
- 12:30 pm Cairo is 3:30 am Monterrey.
- What is 2:00 pm Cairo in Monterrey?
- 2:00 pm Cairo is 5:00 am Monterrey.
- What is 5:00 pm Cairo in Monterrey?
- 5:00 pm Cairo is 8:00 am Monterrey.
- What is 11:30 pm Cairo in Monterrey?
- 11:30 pm Cairo is 2:30 pm Monterrey.