Unit Converters
Time Duration Converter
Convert time durations: seconds, minutes, hours, days, weeks, months, and years. Perfect for project planning, time tracking, scheduling, and understanding time periods.
Use Time Duration Converter to get instant results without uploads or sign-ups. Everything runs securely in your browser for fast, reliable output.
Your results will appear here.
About this tool
Time duration conversion is essential for countless situations: project management (converting hours to days), time tracking and billing (minutes to decimal hours), understanding subscription periods (months to days), planning travel (hours to days), fitness tracking (seconds to minutes), cooking timers, and more. Our Time Duration Converter makes these calculations instant and accurate.
The converter handles all common time units: seconds, minutes, hours, days, weeks, months (using 30 days average), and years (using 365 days). It provides precise conversions for short durations (seconds to minutes) and long periods (years to days). Whether you're calculating project timelines, understanding contract periods, or simply converting time formats, this tool saves time.
Time conversions appear in professional and personal contexts: calculating billable hours for freelancing, understanding video lengths in different units, planning workout intervals, converting sleep duration (hours to minutes), estimating project completion times, understanding loan terms, comparing subscription plans, and managing schedules across different time scales.
The calculator is particularly useful for project managers estimating task durations, freelancers converting time to billable hours, students planning study schedules, fitness enthusiasts tracking workout times, content creators calculating video lengths, and anyone needing to understand time periods in different units. Quick conversions improve planning and time management.
Usage examples
Work Hours
Convert 8-hour workday to minutes
8 hours = 480 minutes
Project Duration
Convert 3-week project to days
3 weeks = 21 days
Video Length
Convert 90-minute movie to hours
90 minutes = 1.5 hours
Workout Timer
Convert 45-second plank to minutes
45 seconds = 0.75 minutes
Subscription Period
Convert 1-year subscription to days
1 year = 365 days
How to use
- Enter the time duration value you want to convert.
- Select the unit you're converting FROM (e.g., hours).
- Select the unit you're converting TO (e.g., minutes).
- Click "Convert" to see the result instantly.
- Use for project planning, time tracking, or understanding durations.
- Helpful for scheduling, billing, and time management.
Benefits
- Convert between all common time duration units instantly
- Essential for project planning and time estimation
- Perfect for time tracking and billable hours calculation
- Useful for understanding subscription and contract periods
- Helps with workout and fitness timing conversions
- Simplifies scheduling and calendar planning
- Free alternative to manual time calculations
- Educational tool for understanding time relationships
- Supports both tiny (seconds) and large (years) durations
- Accurate conversions for professional billing and contracts
- Helpful for content creators calculating video durations
- Mobile-friendly for quick on-the-go time conversions
FAQs
How many minutes are in an hour?
There are exactly 60 minutes in one hour. This is a fixed conversion: 1 hour = 60 minutes, 2 hours = 120 minutes, etc. To convert hours to minutes, multiply by 60. To convert minutes to hours, divide by 60.
How many hours are in a day?
There are exactly 24 hours in one day. This applies to both standard days and for time calculations. To convert days to hours, multiply by 24. To convert hours to days, divide by 24. For example, 3 days = 72 hours.
How many days are in a week, month, or year?
One week = 7 days (exactly). One month = approximately 30 days (varies by month: 28-31 days). One year = 365 days (366 in leap years). Our calculator uses 30 days for months and 365 days for years as standard approximations.
How do I convert decimal hours to hours and minutes?
The decimal part represents a fraction of an hour. Multiply the decimal by 60 to get minutes. For example, 2.5 hours = 2 hours and (0.5 × 60) = 30 minutes. Or 1.75 hours = 1 hour and (0.75 × 60) = 45 minutes. Our converter can help verify these calculations.
How do I calculate billable hours from time tracking?
Track your time in hours and minutes, then convert to decimal hours for billing. For example, 1 hour 30 minutes = 1.5 hours. Multiply by your hourly rate. Some billing requires rounding (e.g., to nearest 0.25 hours or 15 minutes).
What's the difference between hours worked and days worked?
Days worked typically refers to full workdays (usually 8 hours). If you work 40 hours, that's 5 days (40 ÷ 8). But in time conversion, 1 day = 24 hours regardless of work context. Context matters—clarify whether "days" means calendar days or workdays.
How do I handle time zones when converting durations?
Duration conversions (how long something takes) are independent of time zones. A 2-hour meeting is 2 hours regardless of location. Time zones only matter for specific clock times (when something happens). Our duration converter handles "how long," not "what time."
Can I use this for age calculations?
Yes, for rough estimates. Convert years to days (multiply by 365) or days to years (divide by 365). However, for precise ages accounting for leap years and exact dates, use a dedicated age calculator. This converter is best for durations and time periods, not specific date ranges.
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