ns-ui / team-grid-timezone-rail
all 6 + you free 13:00–17:00 UTC · 4h shared
Six people, six timezones. The inked run on the UTC rail is the only window in which everyone is inside their own working hours at once — four hours, 13:00 to 17:00 UTC. Hover one person and the rail opens out to the hours just you two share; press to pin it.