Tool library / Events & people

OverlapAtlas Studio · Feature guide · 11 November 2026

Find a meeting time across time zones on a specific date

By İsmail Tekindemir · 3 min read

Ownership disclosure: Taskfield Journal and all 17 featured sites are operated by İsmail Tekindemir. These are owner-written product guides, not independent reviews or paid third-party rankings. No ratings, user counts or traffic claims are implied.

Availability windows, overnight rules and one-event UTC calendar export.

OverlapAtlas compares user-entered local availability against a selected UTC day. It is more specific than a list of current clocks: the chosen date matters, and an entire meeting must fit each person’s working window. It does not access anyone’s calendar or claim that an available-looking slot is an accepted invitation.

What it does

• Add up to 12 people/desk labels with a browser-supported named time zone, local window and local start weekdays.
• Select a UTC date and 15–120 minutes of elapsed meeting time.
• Overnight windows belong to the weekday on which they start. Monday 22:00–06:00 continues into Tuesday morning.
• The app evaluates 96 quarter-hour UTC starting candidates, checking every minute of the full duration.
• Show all-person fits first or rank other candidates by full-duration participant count and UTC time.
• Inspect each person’s local date, start/end and UTC offset for a selected candidate.
• Use up to 30 undo states and editable JSON backups; export selected-slot CSV or one UTC ICS event.
• An event ending exactly at the closing boundary fits; one extending beyond it does not.

A practical workflow

1. Choose the UTC day and elapsed duration you want to explore.
2. Enter each participant’s actual local window and start weekdays.
3. Compare full-overlap candidates and inspect local dates, not only clock times.
4. Confirm the slot with people separately, then download the selected-slot report or ICS.

A worked use case

A Monday overnight window is evaluated through its Tuesday finish. Across a daylight-saving transition, elapsed duration is checked rather than subtracting two potentially misleading local clock labels.

What you can keep

• Editable JSON
• Selected-slot CSV
• Single UTC ICS event

Participant labels and settings stay in tab memory. There is no calendar account connection or automatic save.

What it does not promise

• Time-zone rules come from the browser. No live calendar, holiday, leave, split-shift or recurring-meeting data is fetched.
• The hour strip is a shortcut, not the full set of quarter-hour candidates. Equal window times are rejected; use 00:00–24:00 for a full day.
• ICS sends no invitations, adds no attendees and does not connect to a calendar account.

Where to go next

Visit OverlapAtlas Studio or compare the other events & people workflows.