1 min lesson
Most timezone mistakes aren't carelessness
Use "Most timezone mistakes aren't carelessness" to tell the cases apart, then choose a response for each one.
Step 1 of 2
Where timezone bugs actually come from
Most timezone mistakes aren't carelessness. They come from a handful of predictable traps and once you can name them you can guard against each one.
Calendar and scheduling tools render times in the organizer's local zone by default.
What looks right to you in New York shows up wrong to a candidate in London.
Spring-forward and fall-back don't happen on the same date worldwide.
A meeting set weeks out can drift by an hour if a clock change lands in between.
A candidate's resume says Seattle, but they're visiting family in Boston this week.
Confirm where they'll actually be sitting, not where you think they live.
Half-hour offsets (India), date-line crossings and zones that don't observe DST at all.
These break naive mental conversions every time.