Overlap in one pass
Add people, hours, and IANA zones. Instantly see the shared window in every region’s clock.
TimeSpan
The hours your distributed team actually shares.
Plot working windows across time zones, see the overlap, and drop a calendar invite — all on this device.
Product
Built for remote coordination
TimeSpan is a guest workspace: no accounts, no servers holding your roster — just a clear overlap window.
Map the footprint
Markers and a soft longitude band show where your team sits on the globe as you plan.
Stay local
Saved team and history live in your browser. Export an .ics when you are ready to book.
Workflow
How it works
Three steps from blank slate to a meeting on the calendar.
Assemble the roster
Pull in teammates with time zones and working hours, or load a saved team.
Calculate the span
TimeSpan intersects every window and surfaces the hours you can all attend.
Ship the invite
Download a calendar file and keep the result in local history for next time.
Case study
Browser-only cross-timezone meeting planner — overlap, map footprint, and ICS with no login.
Problem solved
Distributed teams guess at shared hours across IANA zones. Spreadsheets and chat threads drift; calendar invites get booked in the wrong offset.
Approach
- Client-side overlap with Luxon (overnight windows included)
- Leaflet team map with UTC longitude guides
- localStorage team + history; one-click .ics export
Stack
- UI
- HTML / CSS / JavaScript
- Time
- Luxon
- Map
- Leaflet
Outcome
- Shared working window in UTC and every local clock
- No accounts or server-held roster
- Invite file ready the moment overlap is found
Plans
Simple access. No gate.
Pricing is illustrative — every plan opens the same guest workspace. No signup required.
Free
Individuals & freelancers
$0
- Unlimited local calculations
- ICS export
- Guest workspace
Team
Distributed squads
$12
- Saved team roster
- Overlap history
- Map footprint view
Enterprise
Org-wide coordination
Custom
- Workspace naming
- Default hour policies
- Runs fully offline-capable