Schedule meetings across time zones — fairly.

The timezone meeting scheduler that stops making the same people take the midnight calls.

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ClockAlign Fair Time Finder showing timezone comparison for Mumbai and Philadelphia

Schedule smarter across every time zone.

Sacrifice Score

Track who's bearing the burden of bad meeting times. The algorithm rotates sacrifice so it's not always the same person waking up early.

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Sacrifice Score leaderboard showing team fairness metrics

Golden Windows

Find times when everyone's actually sharp — not just awake. Based on circadian rhythms and cognitive performance research.

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Async Nudge

Smart detection when a Loom or doc would work better than a meeting. Saves 5+ hours per week on average.

Fair Rotation

Recurring meetings automatically rotate times so no single timezone always bears the cost. Minimizes maximum sacrifice across all participants.

Golden Windows cognitive sharpness heatmap showing peak performance hours

Find the best meeting time for your global team

Add your team members across time zones and discover “Golden Windows” — the times when everyone is cognitively sharp, not just awake. Our algorithm finds the fairest meeting times that minimize sacrifice for all participants.

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Ready to find optimal times

Add at least 2 team members to see AI-powered meeting time suggestions with fairness scores and cognitive sharpness analysis.

Sacrifice Score Leaderboard

Track who's sacrificing the most for meetings

The Sacrifice Score leaderboard makes timezone pain visible. See who's been taking the hit for inconvenient meeting times, and let the algorithm automatically rotate the burden so no one person always gets the midnight call.

#
Team Member
Sacrifice Score
Meetings
Trend
SC

Sarah Chen

Last sacrifice: 2 days ago

245
7 inconvenient
18total
MJ

Marcus Johnson

Last sacrifice: 1 week ago

198
5 inconvenient
22total
EW

Emma Williams

Last sacrifice: 2 weeks ago

156
3 inconvenient
15total
DP

David Park

Last sacrifice: 3 days ago

134
4 inconvenient
20total
LR

Lisa Rodriguez

Last sacrifice: 1 month ago

89
2 inconvenient
12total
Most Fair Team

Sarah's Squad

245 avg sacrifice score

Fairness Streak

12 meetings

Perfect rotation

Team Health

Excellent

Score variance: 15%

?How Sacrifice Score works

1Points awarded for attending meetings outside preferred hours

2Night/early morning meetings earn bonus points

3Algorithm prioritizes members with lower scores

4Scores decay over time to ensure ongoing fairness

Cognitive Science Powered

See when your team is actually sharp — not just awake

Golden Windows uses circadian rhythm research to find times when your team members are at peak cognitive performance. Schedule important decisions during peak hours and avoid the post-lunch dip — so every meeting actually counts.

Peak Hours

10 AM - 12 PM

98% cognitive performance

Afternoon Peak

2 PM - 4 PM

88% cognitive performance

Avoid

1 PM - 2 PM

Post-lunch dip (60%)

Cognitive Sharpness by Hour

Peak (90-100%)
Good (70-89%)
Fair (40-69%)
Low (0-39%)
100%75%50%25%0%

Peak Performance

10 AM
11 AM
12 PM
3 PM

Best for: Strategic decisions, creative work, complex problem solving

Good Performance

9 AM
2 PM
5 PM

Best for: Regular meetings, updates, collaborative work

Fair Performance

7 AM
8 AM
1 PM
6 PM

Best for: Status updates, light discussions, email

Low Performance

Avoid meetings during these hours

8 PM - 8 AM

Sleep hours, evening wind-down. Schedule async instead.

The Science Behind Golden Windows

Our algorithm is based on decades of chronobiology research. Everyone has a unique circadian rhythm, but most people experience similar patterns of cognitive performance throughout the day.

Circadian Rhythms
Ultradian Cycles
Sleep Science
Cognitive Psychology
Smart Detection

Know when a meeting should have been an email

The Async Nudge detects when timezone spread or low urgency means a meeting isn't worth the sacrifice. Get smart suggestions to use a Loom, Notion doc, or Slack thread instead — and track the hours your team reclaims every week.

1

Analyze Timezones

Detects 8+ hour spreads automatically

2

Check Urgency

Evaluates if sync is truly needed

3

Suggest Async

Recommends the best async format

4

Save Time

Reclaim hours for deep work

Detection Scenarios

Weekly Standup

12h spread8 people
Async
Confidence92%

12-hour spread + low urgency = perfect for async

Product Launch Review

6h spread5 people
Sync
Confidence85%

High urgency requires real-time collaboration

Design Feedback

9h spread4 people
Async
Confidence78%

Loom video allows thoughtful, detailed feedback

Async Alternatives

Loom Video

Save 30-60 min

Record your screen and voice for async updates

DemosWalkthroughsStatus updatesFeedback

Notion Doc

Save 45-90 min

Write a detailed document with context and decisions

SpecsDecisionsResearchPlanning

Slack Thread

Save 15-30 min

Async discussion in a dedicated channel thread

Quick questionsBrainstormingFeedbackUpdates

Quick Actions

40%

Meetings that could be async

5.5h

Avg. time saved per week

87%

Team satisfaction with async

3.2x

More thoughtful feedback

Ready to schedule meetings fairly across time zones?

Join teams who stopped making Tokyo take the midnight calls.

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