Advanced planning calculator
When can family members in three time zones all talk?
Choose a date and three time zones. The tool finds hourly windows between 8 AM and 8 PM for all three locations.
Included with Complete in the app. It runs in the US Expat Desk app for iPhone and iPad with Complete. This page shows how it works. Reviewed September 2026.
Family calling-window scheduler
Candidate instants are checked in every selected IANA time zone. Daylight-saving gaps and repeated times remain explicit.
Included with Complete in the US Expat Desk app. Coming soon to the App Store for iPhone and iPad. Get the app.
Worked example
Family members in New York, London, and Jerusalem compare a specific date before agreeing a recurring call.
Result
- summary
- 6 three-place daytime windows
- slots
slots
Item
- place1
- Thu, Oct 15, 8:00 AM (America/New_York)
- place2
- Thu, Oct 15, 1:00 PM (Europe/London)
- place3
- Thu, Oct 15, 3:00 PM (Asia/Jerusalem)
Item
- place1
- Thu, Oct 15, 9:00 AM (America/New_York)
- place2
- Thu, Oct 15, 2:00 PM (Europe/London)
- place3
- Thu, Oct 15, 4:00 PM (Asia/Jerusalem)
Item
- place1
- Thu, Oct 15, 10:00 AM (America/New_York)
- place2
- Thu, Oct 15, 3:00 PM (Europe/London)
- place3
- Thu, Oct 15, 5:00 PM (Asia/Jerusalem)
Item
- place1
- Thu, Oct 15, 11:00 AM (America/New_York)
- place2
- Thu, Oct 15, 4:00 PM (Europe/London)
- place3
- Thu, Oct 15, 6:00 PM (Asia/Jerusalem)
Item
- place1
- Thu, Oct 15, 12:00 PM (America/New_York)
- place2
- Thu, Oct 15, 5:00 PM (Europe/London)
- place3
- Thu, Oct 15, 7:00 PM (Asia/Jerusalem)
Item
- place1
- Thu, Oct 15, 1:00 PM (America/New_York)
- place2
- Thu, Oct 15, 6:00 PM (Europe/London)
- place3
- Thu, Oct 15, 8:00 PM (Asia/Jerusalem)
How the result is worked out
Candidate instants are checked in every selected IANA time zone. Daylight-saving gaps and repeated times remain explicit.
Limitations
The result does not know personal calendars, work hours, sleep patterns, or future rule changes.
This tool does not decide eligibility, legal obligations, document sufficiency, or official outcomes.
Sources and review
The result is deterministic and uses only the values entered. Open original sources when a planning step depends on a provider or authority.
- Daylight Saving Time. National Institute of Standards and Technology. Retrieved September 22, 2026.
- International Travel. U.S. Department of State. Retrieved September 22, 2026.
US Expat Desk is the trading name of Joao Vitor Humenhuk Achutti, a sole trader. Reviewed September 2026.
Common questions
Does family calling-window scheduler decide an official requirement?
No. It organizes customer-entered planning information and never decides eligibility, legal obligations, or official deadlines.
Where are my answers stored?
This calculator runs in the US Expat Desk app with Complete. Your values and saved results stay on your device. This page shows a worked example only.
Can I export the result?
Yes. A completed result can be printed and exported in the formats shown beside the result.
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In the US Expat Desk app
Free to start. Complete costs USD 49.99 per year with a seven-day free trial, or USD 7.99 per month, through the App Store. Complete includes every advanced calculator and household capability. This website sells nothing.