How to convert 60 seconds to 1 minute?

60 seconds = 1 minute (exact conversion)

How to convert 24 hours to 1 day?

24 hours = 1 day (exact conversion)

How to convert 7 days to 1 week?

7 days = 1 week (exact conversion)

How to convert 365 days to 1 year?

365 days = 1 year (common year)

How do I convert between different time units?

Select your starting time unit from the dropdown, enter the value, then choose your target unit. The converter will instantly show the converted result. You can also use the swap button to reverse the conversion.

What are the most common time conversions?

Common conversions include hours to minutes (1 hour = 60 minutes), days to hours (1 day = 24 hours), weeks to days (1 week = 7 days), and years to days (1 year = 365.25 days accounting for leap years).

How accurate is this time converter?

Our time converter uses precise mathematical formulas and internationally recognized conversion factors. For calendar conversions, we account for leap years and standard time measurements to ensure maximum accuracy.

Can I convert between very small time units?

Yes, our converter supports very small time units including nanoseconds, microseconds, and milliseconds. This is useful for scientific calculations, computer programming, and precise timing applications.

What is the difference between calendar time and scientific time?

Calendar time includes units like days, weeks, months, and years that vary in length. Scientific time uses precise units like seconds, minutes, and hours that are constant and internationally standardized.

How do leap years affect time calculations?

Leap years add one extra day (February 29) every 4 years to keep our calendar synchronized with Earth's orbit. Our converter accounts for this by using 365.25 days per year for accurate long-term calculations.

Time - Hours to Minutes, Days to Weeks, Seconds

Common Time Conversions

Hour to Minutes

1 h = 60 min

Day to Hours

1 d = 24 h

Week to Days

1 week = 7 d

Year to Days

1 year = 365.25 d

Minute to Seconds

1 min = 60 s

Decade to Years

1 decade = 10 years

Time Facts & Examples

Light Speed

Light travels around Earth in 0.133 seconds

Human Lifespan

Average lifespan ≈ 700,000 hours or 80 years

Leap Year

Every 4 years has 366 days (extra 24 hours)

Heartbeat

Human heart beats ~100,000 times per day

About Time Measurement

Time measurement is the foundation of modern civilization, enabling precise coordination, scientific discovery, and technological advancement. As one of the seven fundamental SI base units, time serves as the universal reference for all temporal calculations and measurements across scientific, engineering, and everyday applications.

What is Time?

Time is the indefinite continued progress of existence and events that occurs in succession from the past through the present to the future. In physics, time is considered the fourth dimension and is fundamental to our understanding of space-time. The SI unit of time is the second (s), which is defined by the International System of Units as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the cesium-133 atom.

Common Time Units and Conversions

Unit	Symbol	Equivalent in Seconds	Common Use
Nanosecond	ns	10⁻⁹ s	Computer processors, light travel
Microsecond	μs	10⁻⁶ s	High-speed photography, electronics
Millisecond	ms	10⁻³ s	Human reaction time, audio processing
Second	s	1 s	SI base unit, everyday timing
Minute	min	60 s	Meeting durations, cooking times
Hour	h	3,600 s	Work shifts, travel time
Day	d	86,400 s	Calendar days, biological cycles
Week	week	604,800 s	Work schedules, planning cycles
Year (Julian)	year	31,557,600 s	Astronomical calculations, long-term planning

Time Measurement Systems

Atomic Time Standards

The most precise time measurement uses atomic clocks based on cesium-133 atoms. These clocks are accurate to within one second in 100 million years, making them essential for GPS, telecommunications, and scientific research.

Coordinated Universal Time (UTC)

UTC is the world's primary time standard, maintained by atomic clocks worldwide. It serves as the reference for all other time zones and is used in aviation, computing, and international communications.

Time Measurement Tools and Instruments

Atomic Clocks

Use the natural vibration frequency of cesium-133 atoms to maintain extremely precise time. These are the most accurate timekeeping devices ever created, with precision better than one part in 10¹⁵.

Quartz Crystal Oscillators

Found in most electronic devices, these use the piezoelectric properties of quartz crystals to generate precise electrical signals. They're accurate to within a few parts per million.

Chronometers and Stopwatches

Mechanical and digital devices for measuring elapsed time with high precision. Used in sports, scientific experiments, and industrial processes.

Time in Scientific and Engineering Applications

Physics and Astronomy

• Relativity calculations and space-time measurements
• Astronomical observations and celestial mechanics
• Particle physics experiments and decay rates
• Quantum mechanics and wave function evolution

Engineering and Technology

• Computer processor clock cycles and timing
• Telecommunications and network synchronization
• GPS navigation and satellite positioning
• Industrial automation and process control

Time Conversion Formulas and Calculations

Key Conversion Relationships

1 minute = 60 seconds (T_min = 60 × T_s)

1 hour = 3,600 seconds (T_h = 3,600 × T_s)

1 day = 86,400 seconds (T_d = 86,400 × T_s)

1 year = 31,557,600 seconds (T_year = 31,557,600 × T_s)

Leap year = 31,622,400 seconds (T_leap = 31,622,400 × T_s)

Why Time Measurement is Critical

Safety and Precision

Accurate time measurement is essential for aviation safety, medical procedures, and industrial processes where timing errors could have catastrophic consequences.

Global Coordination

International trade, telecommunications, and scientific collaboration depend on synchronized time standards across different time zones and continents.

Scientific Discovery

Many scientific discoveries and technological innovations rely on precise time measurements, from understanding the universe's age to developing faster computers.

Frequently Asked Questions About Time Measurement

What is a leap second?

A leap second is an adjustment of one second added to Coordinated Universal Time (UTC) to account for the Earth's irregular rotation. Since 1972, 27 leap seconds have been added to keep atomic time in sync with astronomical time.

How accurate are atomic clocks?

Modern atomic clocks are accurate to within one second in 100 million years. The most precise optical atomic clocks can achieve accuracy better than one part in 10¹⁸, equivalent to losing less than one second over the age of the universe.

Why do we need different time units?

Different time units serve different purposes: nanoseconds for computer operations, seconds for everyday activities, hours for work schedules, and years for long-term planning. Each unit provides appropriate precision for its intended use.

Time Standards and International Coordination

The International Bureau of Weights and Measures (BIPM) maintains the world's time standards and coordinates atomic clocks worldwide. This ensures that time measurements are consistent and reliable across all scientific, commercial, and governmental applications, enabling global synchronization and precise coordination of activities that span multiple time zones and continents.

Time Converter