Enjoying NextUtils? Every coffee helps keep these tools free for everyone.
Buy me a coffeeHow to Use
- 1
Select a Date
Pick the date you want to schedule. DST adjustments are automatically applied per timezone based on the selected date.
- 2
Add Participants and Their Working Hours
Add each team member's timezone and their working start and end times in their local time. Overnight shifts that span midnight are supported.
- 3
Configure Options
Open the Options panel to set time resolution (15, 30, or 60 minutes) and minimum overlap duration to filter out windows that are too short for a useful meeting.
- 4
Click Find Overlaps
Click the "Find Overlaps" button to see the visual timeline and a ranked list of windows where all participants are simultaneously available.
- 5
Share or Export Results
Copy a shareable link to send the configuration to your team, or export any overlap window as a CSV file with local times per participant for use in calendar invites.
Want to learn more?
📖How to Find Working Hours Overlap for Remote Teams in 2026 (Free Tool)
Related Tools
Meeting Time Calculator
Find meeting times across timezones with DST support.
Try Meeting Time Calculator →Date Calculator
Date differences, age, business days, add/subtract dates.
Try Date Calculator →Timer & Stopwatch
Countdown and stopwatch with laps and quick presets.
Try Timer & Stopwatch →Pomodoro Timer
Boost productivity with the Pomodoro Technique. Customizable focus/break durations, auto-start, sound alerts, session tracking, and keyboard shortcuts.
Try Pomodoro Timer →Frequently Asked Questions
- How many participants can I add to the working hours overlap calculator?
- There is no hard limit on participants. The visual timeline and overlap calculation handle all participants simultaneously. The more participants you add, the narrower the overlap windows typically become.
- Does the calculator handle Daylight Saving Time (DST)?
- Yes. DST is automatically applied based on the date you select. Each timezone has its DST start and end dates configured (US, EU, Australia, New Zealand). Selecting a date during a DST transition period correctly shows the adjusted UTC offset for each timezone on that specific day.
- Can I set overnight working hours that span midnight?
- Yes. If a participant's end time is earlier than their start time (e.g. 10 PM – 6 AM), the calculator treats it as an overnight shift spanning midnight. This correctly handles night shift workers and teams in Oceania with schedules that cross midnight UTC.
- What does the visual timeline show?
- The timeline shows a 24-hour UTC grid. Each participant row highlights their working hours in purple with their local time beneath. A green overlap row shows windows where all participants are simultaneously available. A red marker shows the current UTC time when today's date is selected.
- How do I share the schedule configuration with my team?
- Click "Copy Shareable Link" to generate a URL that encodes your full configuration (date, participants, timezones, working hours). Anyone who opens the link will see the same setup pre-loaded in their browser — no account or install required.
- What does the minimum overlap setting do?
- The minimum overlap filter removes windows shorter than the specified duration (default: 60 minutes). This prevents very short windows from cluttering the results. Set it to 30 minutes for quick syncs or 90–120 minutes for planning sessions.
- Is my schedule data private?
- Completely. All calculations run locally in your browser — no data is ever sent to a server. The shareable link encodes your configuration directly in the URL using base64; nothing is stored on our servers.
- Can I export the overlap results to a CSV or calendar?
- Yes. Each identified overlap window has an "Export CSV" button that downloads a CSV file with the start and end time in each participant's local timezone. You can also use the "Copy" button to paste times as plain text into an email or calendar invite.