Best overlap: 8:00 AM to 11:00 AM in Boston is 3:30 PM to 6:30 PM in Tehran.
Keep meetings inside 8:00 AM to 11:00 AM in Boston — that maps to 3:30 PM to 6:30 PM in Tehran. Tehran is 7.5 hours ahead of Boston, which gives you a solid 3-hour window. Book earlier in it and neither side is rushing. Keep an eye on the calendar — Boston observes daylight saving and Tehran doesn't, which nudges this window by an hour twice a year.
| Local time | 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Boston America/New York | ||||||||||||||||||||||||
Tehran Asia/Tehran |
Long-distance relationships, parents working overseas, grandkids in Auckland and grandparents in London. The work guides do not really apply. Here is a practical playbook for keeping family relationships strong across time zones. -