Time zone guides

Daylight saving, odd offsets, and scheduling across zones

• How daylight saving time works in Sweden

  When Swedish clocks change, why the time gap to New York, Dhaka and Lisbon shifts during the year, and how to check the exact difference.

• Best time to schedule calls between Europe and the US

  How much working-hours overlap Europe and the US actually share, which slots work for each coast, and the weeks when the gap shifts by an hour.

• Why some countries have half-hour time zones

  Which places use 30- and 45-minute time zone offsets, why they exist, and how they change the arithmetic when you convert times.

• Working across time zones: a practical guide for remote teams

  Practical habits for remote teams spread across time zones: find a core overlap, write times unambiguously, favour async, and plan for daylight saving changes.