🕚 Cairo to Chicago Time Converter

Chicago is 8 hours behind Cairo for most of the year: when it is 10:00 am in Cairo it is 2:00 am in Chicago. In offset terms Cairo is on UTC+02:00 and Chicago is on UTC-06:00 in January, and UTC+03:00 and UTC-05:00 in July. The converter above works from your browser’s own time zone data, so the figure it shows is the one in force today rather than the one that was in force when this page was written.

The difference is not constant, because both cities observe daylight saving but not on the same dates. In 2026, Cairo changes on 24 April and 30 October and Chicago changes on 8 March and 1 November. That leaves 5 distinct periods in the year, including 1 short one of a few weeks, and the table below gives the exact dates. It is the short windows that catch people out: a recurring call booked in one city’s clock silently moves in the other’s.

For arranging anything, the number that matters is the overlap. Cairo works 09:00 to 17:00 and Chicago works 08:00 to 17:00, which leaves 16:00 to 17:00 in Cairo — 08:00 to 09:00 in Chicago — as the window when both are open. That is 1 hour of shared working time. The working weeks differ: Cairo works Sunday to Thursday while Chicago works Monday to Friday, which leaves three shared days at each end of the week and two mismatched ones.

Two local details worth knowing. Egypt reinstated daylight saving in 2023 after eight years without it, so older conversion tables for Cairo are wrong for part of the year. Futures trading at the CME starts at 08:30 Central, which is why Chicago mornings begin an hour earlier than the clock difference to New York suggests.

Write the invitation in both clocks. "10:00 Cairo / 02:00 Chicago" removes the ambiguity that abbreviations introduce — Cairo alone is read as EET in winter and EEST in summer, and calendar software will happily convert one into the other without telling you.

The formula

local Cairo

The time you enter, on the Cairo clock

offset

Each city’s UTC offset at that moment, read live from the IANA time zone database in your browser

−8

The difference in hours that holds for most of 2026: Chicago is 8 hours behind Cairo

day shift

Whether the converted time falls on the previous, same or next calendar day in Chicago

How it works, step by step

1. Enter a time in Cairo using the 24-hour hour box and the minute box — 15:30 is hour 15, minute 30.
2. Your browser reports the UTC offset in force in Cairo and in Chicago for that moment, so a date near a daylight saving transition is handled correctly rather than with a fixed 8 hour rule.
3. The second offset minus the first gives the difference, which is added to the time you entered. A result past midnight is marked as the next or previous day, because that is where most conversion mistakes live.
4. The panel also shows the current time in both cities, the date in Chicago, and whether the two offices are open at the same moment.

Worked examples

How to read your score

Frequently asked questions

Cairo to Chicago: every hour, every period of 2026, and meeting slots

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