Time Summation Calculator
Add up multiple time entries quickly. Perfect for calculating total work hours, project time, or any time-based calculations.
ADD TIME ENTRIES
CURRENT ENTRIES
TOTAL TIME
WHAT IS THIS TOOL?
The Time Summation Calculator is a free developer tool that helps you quickly add up multiple time entries in various formats. Perfect for calculating total work hours, project time, meeting durations, or any time-based calculations without the hassle of manual conversion.
Why Use This Tool?
- Multiple Formats: Supports hours:minutes, decimal hours, minutes, seconds, and more
- Instant Results: Real-time calculations as you add entries
- No Registration: Works immediately without signups or downloads
- Copy Results: Easy one-click copying of calculated totals
HOW TO USE
SUPPORTED FORMATS
- 2:30 (hours:minutes)
- 1h 45m (hours and minutes)
- 90 minutes (minutes only)
- 1.5 hours (decimal hours)
- 5400 seconds (seconds only)
EXAMPLES
- Project work: 2:30 + 1:45 = 4:15
- Daily hours: 8h 30m + 1h 15m = 9h 45m
- Meeting time: 30m + 45m + 1h = 2:15
COMMON USE CASES
Time Tracking
Calculate total hours worked across multiple tasks, projects, or days for accurate time tracking and billing.
Project Planning
Add up estimated time for different project phases to get accurate project timelines and resource planning.
Meeting Schedules
Calculate total meeting time across multiple sessions or add up time spent in different meeting types.