Timestamp Calculator Tools
Professional-grade timestamp calculation tools for developers, analysts, and anyone working with time-based data. All tools are timezone-aware and provide instant, accurate results.
Duration Calculator
Calculate the time between two dates with precision down to the second. Get results in years, months, days, hours, and more.
- ✓ Time between two dates
- ✓ Age calculator
- ✓ Business days (exclude weekends)
- ✓ Multiple time units
- ✓ Timezone-aware calculations
Date Math Calculator
Add or subtract time from any date. Find start and end of periods like months, quarters, or years.
- ✓ Add/subtract time units
- ✓ Date boundaries (start/end of month, year, etc.)
- ✓ Future date calculations
- ✓ Past date calculations
- ✓ Period calculations
Meeting Scheduler
Find optimal meeting times across multiple timezones. Visual timeline with working hours and smart recommendations.
- ✓ Multiple participants
- ✓ Visual 24-hour timeline
- ✓ Smart time recommendations
- ✓ Custom working hours
- ✓ ICS calendar export
Why Use Our Timestamp Calculators?
⚡ Instant Results
All calculations happen in your browser. No server delays, no waiting.
🌍 Timezone-Aware
Automatically detects your timezone and supports all IANA timezones worldwide.
🎯 Precise Calculations
Accurate down to the second using industry-standard Luxon datetime library.
📋 Copy & Share
One-click copying of results. Perfect for documentation and reports.
💼 Business-Friendly
Calculate business days excluding weekends for project planning.
🔒 Privacy First
All calculations happen locally. Your data never leaves your browser.
Common Use Cases
Project Management
Calculate project durations, deadlines, and business days for accurate scheduling and planning.
Age Calculations
Calculate exact ages in years, months, and days. Perfect for HR, healthcare, and legal applications.
SLA Tracking
Monitor service level agreements by calculating business hours and response times.
Event Planning
Plan events by calculating dates relative to deadlines. Find optimal dates accounting for timezones.
Data Analysis
Analyze time-series data by calculating intervals and aggregating by periods.
API Development
Test and validate timestamp calculations for APIs and backend services.
Additional Timezone Tools
Learn More About Timestamps
Want to understand how timestamps work under the hood? Check out our comprehensive learning center:
- Complete Guide to Unix Timestamps
- Timezone Conversion Best Practices
- Working with Date-Time in JavaScript
- Handling Daylight Saving Time
Or visit our reference guide for quick lookups and FAQ for common questions.