Time Converter

Convert between different time units - seconds, minutes, hours, days, weeks, months, and years.

Converters
Loading tool...

How to Use Time Converter

How to Use Time Converter

Convert Between Time Units

  1. Enter Time Value: Type the time value you want to convert

    • Enter any positive number
    • Supports decimals (e.g., 1.5 hours)
    • Automatically cleans input
    • Works with large and small values
  2. Select From Unit: Choose the original time unit

    • Seconds (s)
    • Minutes (min)
    • Hours (h)
    • Days (d)
    • Weeks (wk)
    • Months (mo) - Average 30.44 days
    • Years (yr) - 365 days
  3. Select To Unit: Choose the target time unit

    • Same options as From Unit
    • Can be any unit (including same unit)
    • Instant conversion as you select
  4. View Results: See the converted value and all units

    • Main Result: Large display of converted value
    • All Units: Conversion to every time unit
    • Smart Formatting: Automatic decimal precision
    • Highlighted Result: Target unit is highlighted
  5. Copy Results: Copy conversion results

    • Copy Result: Copy main conversion only
    • Copy All: Copy all unit conversions
    • One-Click: Quick copy buttons

Features

Seven Time Units

  • Seconds: Base unit (1 second)
  • Minutes: 60 seconds
  • Hours: 60 minutes = 3,600 seconds
  • Days: 24 hours = 86,400 seconds
  • Weeks: 7 days = 604,800 seconds
  • Months: Average 30.44 days = 2,628,000 seconds
  • Years: 365 days = 31,536,000 seconds

Bidirectional Conversion

  • Convert any unit to any other unit
  • Swap units with one click
  • No direction limitation
  • All combinations supported

Smart Number Formatting

  • Whole Numbers: Shown without decimals
  • Decimals: Up to 4 decimal places
  • Large Numbers: Scientific notation for millions+
  • Localized: Uses comma separators (1,000)

All Units Display

When you enter a value, see it converted to ALL time units:

  • Seconds
  • Minutes
  • Hours
  • Days
  • Weeks
  • Months
  • Years

Highlighted target unit for easy identification.

Swap Functionality

  • One-click unit swap
  • Reverses From and To units
  • Keeps the same value
  • Quick direction change

Common Conversions Reference

Quick reference card showing:

  • 1 Minute = 60 seconds
  • 1 Hour = 60 minutes or 3,600 seconds
  • 1 Day = 24 hours or 1,440 minutes
  • 1 Week = 7 days or 168 hours
  • 1 Month = Avg. 30.44 days or 730.5 hours
  • 1 Year = 365 days or 8,760 hours

Common Use Cases

Work & Productivity

  • Project Time Tracking: Convert logged hours to days
  • Billable Hours: Convert minutes to decimal hours
  • Time Estimates: Convert days to hours for scheduling
  • Payroll: Convert work time to different units
  • Meeting Duration: Convert minutes to hours
  • Work Weeks: Calculate hours in work weeks

Fitness & Health

  • Workout Duration: Convert exercise time between units
  • Running Times: Convert race times (minutes to hours)
  • Training Plans: Calculate weekly hours from daily minutes
  • Rest Periods: Convert rest intervals between sets
  • Cardio Time: Track total cardio hours per week
  • Habit Tracking: Convert daily minutes to yearly hours

Cooking & Recipes

  • Cooking Times: Convert recipe times between units
  • Marinating: Calculate marinating hours from days
  • Slow Cooking: Convert cooking hours to minutes
  • Rising Time: Convert bread rising time
  • Baking: Precise timing conversions
  • Food Prep: Calculate total prep time

Travel & Transportation

  • Flight Duration: Convert flight times
  • Drive Time: Calculate trip duration in different units
  • Time Zones: Understand time differences
  • Layovers: Convert wait times
  • Travel Planning: Calculate total travel time
  • Commute Calculations: Daily/weekly/yearly commute time

Education & Study

  • Study Hours: Convert daily study to weekly totals
  • Course Duration: Calculate total course hours
  • Semester Planning: Break down semester hours
  • Homework Time: Track homework hours per week
  • Test Preparation: Calculate total prep time
  • Reading Time: Convert reading minutes to hours

Entertainment & Media

  • Movie Runtime: Convert movie length
  • TV Series: Calculate total binge-watch time
  • Gaming Sessions: Track gaming hours
  • Music Practice: Convert practice minutes to hours
  • Podcast Duration: Calculate listening time
  • Reading Sessions: Track reading time

Science & Research

  • Experiment Duration: Convert lab time
  • Data Collection: Calculate observation periods
  • Chemical Reactions: Time reaction periods
  • Astronomical Events: Convert celestial timings
  • Half-Life Calculations: Convert decay periods
  • Clinical Trials: Track treatment durations

Project Management

  • Task Estimation: Convert story points to hours
  • Sprint Planning: Calculate sprint hours
  • Milestone Tracking: Convert weekly goals to hours
  • Resource Allocation: Plan team hours
  • Timeline Creation: Convert project phases
  • Deadline Calculations: Convert days to hours/minutes

Understanding Time Units

Seconds (s)

  • Base Unit: Fundamental unit of time
  • Definition: 1/60th of a minute
  • Usage: Precise timing, scientific measurements
  • Example: 120 seconds = 2 minutes

Minutes (min)

  • Definition: 60 seconds
  • Usage: Short durations, cooking times
  • Common: Most human activities measured in minutes
  • Example: 90 minutes = 1.5 hours

Hours (h)

  • Definition: 60 minutes or 3,600 seconds
  • Usage: Work time, travel duration
  • Standard: Common for scheduling
  • Example: 8 hours = 480 minutes

Days (d)

  • Definition: 24 hours or 86,400 seconds
  • Usage: Project durations, deadlines
  • Note: Calendar days, not business days
  • Example: 7 days = 1 week

Weeks (wk)

  • Definition: 7 days or 168 hours
  • Usage: Short-term planning, sprints
  • Common: Work schedules, fitness plans
  • Example: 2 weeks = 14 days

Months (mo)

  • Definition: Average 30.44 days (365.25 ÷ 12)
  • Usage: Medium-term planning
  • Note: Average month, actual months vary (28-31 days)
  • Variation: Actual months differ by 2-3 days

Years (yr)

  • Definition: 365 days (8,760 hours)
  • Usage: Long-term planning
  • Note: Does not account for leap years
  • Leap Year: Actual year = 365.25 days on average

Understanding the Results

Main Result Display

Large, prominent display showing:

  • Converted value with smart formatting
  • Target unit name
  • Conversion equation
  • Example: "3,600" with "Seconds" below

Conversion Equation

Shows the calculation:

  • Original value and unit
  • Equals sign
  • Result value and unit
  • Example: "1 h = 3,600 s"

All Units Grid

Shows conversion to ALL seven time units:

  • Each unit in its own card
  • Target unit highlighted in orange
  • Other units in gray
  • Scientific notation for very large numbers

Smart Formatting Examples

  • 60 (whole number, no decimals)
  • 1.5 (simple decimal)
  • 0.0167 (small decimal, 4 places)
  • 1,440 (thousands with comma)
  • 3.15e+7 (scientific notation for 31,536,000)

Quick Examples Explained

1 Hour in Seconds

  • Input: 1 Hour
  • Output: 3,600 Seconds
  • Use: Understanding hour-to-second conversion
  • Common: Programming, scientific calculations

1 Day in Hours

  • Input: 1 Day
  • Output: 24 Hours
  • Use: Work day calculations
  • Common: Scheduling, time tracking

1 Week in Days

  • Input: 1 Week
  • Output: 7 Days
  • Use: Weekly planning
  • Common: Project timelines, fitness programs

1 Year in Days

  • Input: 1 Year
  • Output: 365 Days
  • Use: Annual calculations
  • Common: Subscriptions, contracts

Common Conversion Formulas

Seconds Conversions

  • To Minutes: ÷ 60
  • To Hours: ÷ 3,600
  • To Days: ÷ 86,400

Minutes Conversions

  • To Seconds: × 60
  • To Hours: ÷ 60
  • To Days: ÷ 1,440

Hours Conversions

  • To Minutes: × 60
  • To Seconds: × 3,600
  • To Days: ÷ 24

Days Conversions

  • To Hours: × 24
  • To Minutes: × 1,440
  • To Weeks: ÷ 7

Weeks Conversions

  • To Days: × 7
  • To Hours: × 168
  • To Months: ÷ 4.345 (average)

Months Conversions

  • To Days: × 30.44 (average)
  • To Weeks: × 4.345 (average)
  • To Years: ÷ 12

Years Conversions

  • To Days: × 365
  • To Months: × 12
  • To Hours: × 8,760

Tips & Best Practices

For Accurate Conversions

  • Use Base Units: For precision, convert to seconds first
  • Mind the Decimals: Some conversions produce long decimals
  • Month Variations: Remember months vary (28-31 days)
  • Leap Years: Standard year = 365 days (not 365.25)
  • Rounding: Consider appropriate rounding for your use case

For Work Time Calculations

  • Decimal Hours: 1.5 hours = 1 hour 30 minutes
  • Billable Time: Often rounded to quarter hours
  • Work Week: Typically 40 hours or 5 days
  • Overtime: Calculate beyond standard hours
  • Time Sheets: Convert minutes to decimal hours

For Project Planning

  • Buffer Time: Add margin to estimates
  • Business Days: Remember weekends exist
  • Holidays: Account for non-working days
  • Resource Availability: Consider part-time schedules
  • Dependencies: Factor in waiting time

For Fitness Tracking

  • Consistency: Use same unit for comparisons
  • Weekly Totals: Convert daily to weekly
  • Monthly Goals: Track long-term progress
  • Rest Days: Include in weekly calculations
  • Intensity: Time alone doesn't show effort

For Cooking & Recipes

  • Precision Matters: Exact timing for baking
  • Altitude Adjustments: May affect cooking times
  • Equipment Variation: Ovens vary, adjust accordingly
  • Batch Size: Cooking time may not scale linearly
  • Temperature: Higher temp ≠ proportionally faster

Interesting Facts

  • Human Heartbeat: Average 60-100 beats per minute
  • Blink Duration: Average blink = 0.1 to 0.4 seconds
  • Earth Rotation: Not exactly 24 hours (23h 56m 4s)
  • Leap Second: Occasionally added to clocks
  • Metric Time: Proposed but never adopted (10-hour days)
  • Unix Time: Measured in seconds since 1970
  • Planck Time: Shortest meaningful time = 5.39×10⁻⁴⁴ seconds
  • Age of Universe: About 13.8 billion years
  • Work Year: Average 2,080 hours (40h/week × 52 weeks)
  • Average Lifespan: ~80 years = 700,800 hours

Frequently Asked Questions

Related Utility Tools

Share Your Feedback

Help us improve this tool by sharing your experience

We will only use this to follow up on your feedback