Use our Free Time Unit Converter to easily switch between femtoseconds, picoseconds, nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, and centuries.
Time is a common unit, but it exists in many units — from infinitesimal fractions of a second to centuries. Be a student, engineer, astronomer, or professional, manually converting between these units can get confusing.
The SEO Pheonix Time Unit Converter makes it simple. You can instantly and precisely convert femtoseconds, picoseconds, nanoseconds, microseconds, milliseconds, seconds, minutes, hours, days, weeks, months, years, decades, and centuries — online for free seconds to minutes converter.
A Time Unit Converter is a computer program that enables you to convert time measurements from one unit to another.
For instance
Seconds to minutes
Minutes to hours
Hours to days
Days to weeks or months
Convert weeks to days
Years to decades or centuries
Convert months to years
Rather than having to calculate by hand, this tool provides immediate results, assisting with scientific research, engineering designs, school work, and everyday time calculation.
Time is quantified in units of progressively larger scale, each serving in varying situations. Here's a breakdown:
| Unit | Symbol | Description |
| Femtosecond | fs | 1 quadrillionth of a second (10⁻¹⁵ s) |
| Picosecond | ps | 1 trillionth of a second (10⁻¹² s) |
| Nanosecond | ns | 1 billionth of a second (10⁻⁹ s) |
| Microsecond | µs | 1 millionth of a second (10⁻⁶ s) |
| Millisecond | ms | 1 thousandth of a second (10⁻³ s) |
| Second | s | Base unit of time |
| Minute | min | 60 seconds |
| Hour | h | 60 minutes = 3,600 seconds |
| Day (mean solar) | d | 24 hours |
| Week | wk | 7 days |
| Fortnight | fn | 14 days |
| Month (mean calendar) | mo | ~30.44 days |
| Quarter | Q | 3 months |
| Year (calendar) | yr | 12 months = 365 days |
| Year (sidereal / tropical) | yr | Adjusted for Earth’s orbit |
| Decade | 10 years | 10-year span |
| Century | 100 years | 100-year span |
The Time Unit Converter enables you to convert any of them to another, with instant calculation of precise equivalents.
From femtoseconds for physics research to centuries for age-old data, the converter supports them all.
Conversions in milliseconds ensure precision over manual calculations, which is essential for scientific, engineering, and business work.
No registration or downloads required. The interface is minimal, enabling students, professionals, and hobbyists to convert time units from seconds.
Convert mean solar, sidereal, tropical, and calendar time accurately. Perfect for astronomers and researchers.
Desktop, tablet, or smartphone — the converter is entirely responsive and lightweight for seamless use on any device.
The SEO Pheonix Time Unit Converter is easy to use:
Type the value (e.g., 5)
Choose the unit to convert from (e.g., hours)
Choose the unit to convert to (e.g., minutes)
Click Convert — and get the result in an instant
The software has support for conversions involving fractional units, milliseconds to seconds, days to hours, months to weeks, etc.
Below are some examples that demonstrate real-life application:
| From | To | Conversion Example |
| Seconds | Minutes | 120 sec = 2 min |
| Minutes | Hours | 180 min = 3 h |
| Hours | Days | 48 h = 2 d |
| Days | Weeks | 21 d = 3 wk |
| Weeks | Fortnights | 2 wk = 1 fn |
| Months | Quarters | 6 mo = 2 Q |
| Years | Decades | 30 yr = 3 decades |
| Decades | Centuries | 200 yr = 2 centuries |
Irrespective of whether it's nano, milli, or mega time units, the converter accommodates all scales beautifully.
For Students — Assists in physics, astronomy, and math homework.
For Professionals – Engineers and scientists may require accurate nanoseconds or microseconds for data analysis and experiments.
For Businesses – Converting time is important when planning projects, calculating payroll, and scheduling.
For Astronomers – Sidereal time and tropical years play a big role in observing celestial occurrences.
For Daily Life – Computing days, weeks, months, or years for vacations, contracts, or events.
Some of the most important time unit formulas include:
1 minute = 60 seconds
1 hour = 60 minutes = 3,600 seconds
1 day = 24 hours = 86,400 seconds
1 week = 7 days = 168 hours
1 fortnight = 2 weeks = 14 days
1 month ≈ 30.44 days
1 quarter = 3 months ≈ 91.31 days
1 year = 365.24 days
1 decade = 10 years
1 century = 100 years
With the Time Unit Converter, or days to weeks converter you won't need to remember or compute these — it does it for you automatically.
Femtoseconds and Picoseconds
Applied in physics, chemistry, and quantum computing to quantify ultra-short time intervals.
Nanoseconds and Microseconds
Essential in high-speed computer processing, network data transfers, and electronics timing.
Sidereal and Mean Solar Time
Utilized by astronomers to compute Earth's rotation with respect to stars or the Sun.
Calendar, Tropical, and Historical Years
Applied in climate research, history, and astronomy.
The SEO Pheonix Time Converter deals with all such specialty units correctly.
Saves Time – Direct conversion avoids hours of manual computation.
Reduces Errors – Programmed calculations steer clear of errors inherent in manual unit conversion.
Supports Multiple Scales – From femtoseconds to centuries, all units are addressed.
Educational Value – Facilitates students to visualize time scales and comprehend unit relationships.
Professional Application – Engineers, scientists, and astronomers need precise and quick conversions.
Physics Experiment: Measuring a particle collision in femtoseconds.
Network Speed: Conversion from microseconds to milliseconds to read data latency.
Astronomy: Computing sidereal days for telescope setup.
Project Management: Converting weeks or months to days for task scheduling.
Historical Analysis: Converting decades and centuries for historical time frames.
Always choose the right time standard (mean solar, sidereal, calendar) for astronomical or scientific computation.
Input fractional values for partial units (e.g., input 1.5 hours).
Aggregate units to express longer times (e.g., aggregate 2 weeks and 3 days to hours).
Verify results against known equations for pedagogical purposes.
Immediate & Accurate: Results are instantaneously displayed.
All Units Supported: From femtoseconds to centuries.
Easy to Use: Clean interface, mobile-friendly.
Free & Accessible: No signup or downloads required.
Scientific & Professional Use: Ideal for students, engineers, and astronomers.
The SEO Pheonix Time Unit Converter is the ultimate online tool to convert any time unit, from femtoseconds to centuries.
Whether you’re handling scientific measurements, astronomical calculations, project planning, or daily time management, this converter provides instant, accurate, and free results — all online.
Try it now at SEO Pheonix Time Converter and make all your time calculations easier today!
It's an online application which converts time units from femtoseconds to centuries rapidly and precisely.
Yes! Enter the number of hours, choose "days" or "weeks," and instantly get a result.
Yes! All scientific and practical units of time are supported.
Yes, SEO Pheonix Time Converter is absolutely free and registration is not required.
It employs binary and decimal-based calculations for accurate calculation, including large-scale and fractional units.