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Common Year Calculator

World's Simplest Time Tool

With this browser-based application, you can print a list of common years (years that have 355 days). In the options, you can set the start and end year of the range to calculate all common years from. You can also customize the common year delimiter character for the output list. Created by computer nerds from team Browserling.

Common Year Calculator

World's Simplest Time Tool

With this browser-based application, you can print a list of common years (years that have 355 days). In the options, you can set the start and end year of the range to calculate all common years from. You can also customize the common year delimiter character for the output list. Created by computer nerds from team Browserling.

Tool Options

Common Year Range

Set the start year of the range.
Set the end year of the range.

Common Year Delimiter

Use this symbol to delimit the calculated common years.

What Is a Common Year Calculator?

This is a quick online utility for finding all common years within a given range of years. As you know, the Gregorian calendar uses two types of years – common years and leap years. Common years have 365 days, while leap years have 366 days. The reason why the number of days in both year types isn't equal is because the solar year actually lasts 365.2425 days. To ensure that the number of days in a year is always an integer (either 365 or 366 days), two types of years were created: "common" and "leap". A leap year is one that is divisible by 4, the rest of the years are common. Additionally, common years are ones that are evenly divisible by 100 but not divisible by 400. For example, common years are 2025, 2026, 2027, 2099, 2100, and so on. Our algorithm can find and display all common years within the specified range. For example, you can enter the start year of 1990 and the end year of 2000, and you will get these common years: "1990, 1991, 1993, 1994, 1995, 1997, 1998, 1999". You can print the years as a horizontal list or a vertical column by specifying any delimiter symbol between the years in the options. Timeabulous!

What Is a Common Year Calculator?

This is a quick online utility for finding all common years within a given range of years. As you know, the Gregorian calendar uses two types of years – common years and leap years. Common years have 365 days, while leap years have 366 days. The reason why the number of days in both year types isn't equal is because the solar year actually lasts 365.2425 days. To ensure that the number of days in a year is always an integer (either 365 or 366 days), two types of years were created: "common" and "leap". A leap year is one that is divisible by 4, the rest of the years are common. Additionally, common years are ones that are evenly divisible by 100 but not divisible by 400. For example, common years are 2025, 2026, 2027, 2099, 2100, and so on. Our algorithm can find and display all common years within the specified range. For example, you can enter the start year of 1990 and the end year of 2000, and you will get these common years: "1990, 1991, 1993, 1994, 1995, 1997, 1998, 1999". You can print the years as a horizontal list or a vertical column by specifying any delimiter symbol between the years in the options. Timeabulous!


Common Year Calculator Examples

Click to try!
click me

Find Upcoming Common Years

In this example, we calculate the common years that will fall in the next 20 years. We enter a range of years from 2030 to 2050 in the options, set the separator to a newline "\n", and get a vertical list of all common years in that period.

2030 2031 2033 2034 2035 2037 2038 2039 2041 2042 2043 2045 2046 2047 2049 2050
Required options
These options will be used automatically if you select this example.
Set the start year of the range.
Set the end year of the range.
Use this symbol to delimit the calculated common years.
click me

Common Years of the 19th Century

This example finds all common years of the 19th century (from the year 1801 to 1900). It then outputs them as a semicolon-separated sequence. Common years occur about three times as often as leap years, so we find 76 common years in this 100-year interval.

1801; 1802; 1803; 1805; 1806; 1807; 1809; 1810; 1811; 1813; 1814; 1815; 1817; 1818; 1819; 1821; 1822; 1823; 1825; 1826; 1827; 1829; 1830; 1831; 1833; 1834; 1835; 1837; 1838; 1839; 1841; 1842; 1843; 1845; 1846; 1847; 1849; 1850; 1851; 1853; 1854; 1855; 1857; 1858; 1859; 1861; 1862; 1863; 1865; 1866; 1867; 1869; 1870; 1871; 1873; 1874; 1875; 1877; 1878; 1879; 1881; 1882; 1883; 1885; 1886; 1887; 1889; 1890; 1891; 1893; 1894; 1895; 1897; 1898; 1899; 1900
Required options
These options will be used automatically if you select this example.
Set the start year of the range.
Set the end year of the range.
Use this symbol to delimit the calculated common years.

Pro tips Master online time tools

You can pass options to this tool using their codes as query arguments and it will automatically compute output. To get the code of an option, just hover over its icon. Here's how to type it in your browser's address bar. Click to try!

https://onlinetools.com/time/find-common-years?start-year=2030&end-year=2050&separator=%255Cn

All Time Tools

Didn't find the tool you were looking for? Let us know what tool we are missing and we'll build it!
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Quickly find how old a dog would be if it was a human.
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Quickly generate increasing or decreasing UNIX timestamps.
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Quickly write a clock time in text format (as English text).
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Quickly add slight perturbations to the given clock times.
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Quickly find what day of the week the given calendar date falls on.
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Quickly find what week of the year the given calendar date falls on.
Quickly calculate the calendar date from a day number of a year.
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Quickly print a list of all clock times with a specific hand angle.
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Coming Soon

These time tools are on the way!
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Draw a binary clock that shows time in base two.

Draw a Salvador Dali Clock

Draw a clock in Salvador Dali style showing custom time.

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Draw a weird-looking clock that shows a particular time.

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Draw a π clock with π hours in a day.

Draw a 360° Clock

Draw a 360° clock with 360 degrees in a day.

Animate an Analog Clock

Create a GIF animation of an analog clock.

Animate a Digital Clock

Create a GIF animation of a digital clock.

Animate a Broken Clock

Create a GIF animation of a clock that's broken.

Draw a Daily Calendar

Draw a daily calendar for a single day.

Draw a Weekly Calendar

Draw a weekly calendar for any week of the month.

Draw a Yearly Calendar

Draw a yearly calendar for the entire year.

Draw a Lunar Calendar

Draw a calendar that shows moon phases.

Draw a Solar Calendar

Draw a calendar that shows the seasons and Sun's position.

Draw a Sunrise and Sunset Calendar

Draw a calendar that shows when the Sun rises and sets.

Draw a Moonrise and Moonset Calendar

Draw a calendar that shows when the Moon rises and sets.

Create an Animated Timer

Draw an animation that counts down (or up) time.

Animate an Hourglass

Create a GIF animation of a sand clock.

Draw an Infinite Spiral Clock

Animate a timeless clock that goes in an infinite spiral.

Draw Time as a Pie Chart

Visualize the given clock time as a pie chart.

Draw Date as a Pie Chart

Visualize the current year as a pie chart.

Draw Time as a Bar Chart

Visualize the given clock time as a bar chart.

Draw Date as a Bar Chart

Visualize the current year as a bar chart.

Draw Time as a Pixel Wall

Visualize the given clock time as a pixel wall (1px = 1sec).

Draw Date as a Pixel Wall

Visualize the current year as a pixel wall (1px = 1day).

Draw Time as Bubbles

Visualize the given clock time as bubbles.

Draw Date as Bubbles

Visualize the current year as bubbles.

Draw a Time Arrow

Visualize the given clock time as an arrow.

Convert Time to Percentage

Quickly calculate time passed and left in the current day as pct.

Convert Date to Percentage

Quickly calculate time passed and left in the current year as pct.

Convert Time to Binary Time

Convert regular clock time to binary clock time (bintime).

Convert Date to Binary Date

Quickly regular calendar date to binary date (bindate).

Convert Time to Decimal Time

Convert regular clock time to decimal clock time (dectime).

Convert Date to Decimal Date

Quickly regular calendar date to decimal date (decdate).

Convert Time to Hex Time

Convert regular clock time to hexadecimal time (hextime).

Convert Date to Hex Date

Quickly regular calendar date to hexadecimal date (hexdate).

Animate Moon's Phases

Create a GIF animation of the Moon for a particular month.

Animate Moon's Orbit

Create an animation of the Moon orbiting the Earth.

Animate Mercury's Orbit

Create a 88 day animation of the Mercury orbiting the Sun.

Animate Venus's Orbit

Create a 225 day animation of the Venus orbiting the Sun.

Animate Earth's Orbit

Create a 365 day animation of the Earth orbiting the Sun.

Animate Mars's Orbit

Create a 687 day animation of the Mars orbiting the Sun.

Animate Jupiter's Orbit

Create a 4,330 day animation of the Jupiter orbiting the Sun.

Animate Saturn's Orbit

Create a 10,756 day animation of the Saturn orbiting the Sun.

Animate Uranus's Orbit

Create a 30,687 day animation of the Uranus orbiting the Sun.

Animate Neptune's Orbit

Create a 60,190 day animation of the Neptune orbiting the Sun.

Animate Pluto's Orbit

Create a 90,560 day animation of the Pluto orbiting the Sun.

Animate Solar System

Create an animation of all planets in the Solar System.

Animate Mars's Moons

Create an animation of Phobos and Deimos orbiting Mars.

Animate Jupiter's Moons

Animate Io, Europa, Ganymede, Callisto orbiting Jupiter.

Animate Saturn's Moons

Animate Titan, Rhea, Iapetus, Enceladus orbiting Saturn.

Animate Uranus's Moons

Animate Titania, Oberon, Umbriel, Ariel, Miranda orbiting Uranus.

Animate Neptune's Moons

Animate Triton, Nereid, and Proteus orbiting Neptune.

Animate Pluto's Moons

Animate Charon, Nix, Hydra, Kerberos, Styx orbiting Pluto.

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Find dates when two or more planets align in a straight line.

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Find dates when the solar eclipse happens.

Find Dates of Lunar Eclipse

Find dates when the lunar eclipse happens.

Find Your Age on Other Planets

Calculate your age based on the orbital period of other planets.

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Represent a clock time as a matrix.

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Represent a calendar date as a matrix.

Create a Time Vector

Represent a clock time as a vector.

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Represent a calendar date as a vector.

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Draw a time series chart.

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Given a bunch of time intervals, find overlapping intervals.

Generate Overlapping Times

Generate a bunch of overlapping time intervals.

Generate Non-overlapping Times

Generate a bunch of non-overlapping time intervals.

Generate Random Time Intervals

Generate random clock time intervals.

Find Overlapping Dates

Given a bunch of date intervals, find overlapping intervals.

Generate Overlapping Dates

Generate a bunch of overlapping date intervals.

Generate Non-overlapping Dates

Generate a bunch of non-overlapping date intervals.

Generate Random Date Intervals

Generate random calendar date intervals.

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Swap a clock's hour hand with minute hand.

Reverse Clock Time

Find the reverse of the given clock time.

Invert Clock Time

Find the inverse of the given clock time.

Shift Clock Time

Shift the given clock time by any time interval.

Change Clock Scale

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Generate Valid Clock Times

Generate a list of valid clock times (for testing).

Generate Invalid Clock Times

Generate a list of invalid clock times (for testing).

Generate Valid Calendar Dates

Generate a list of valid calendar dates (for testing).

Generate Invalid Calendar Dates

Generate a list of invalid calendar dates (for testing).

Add Errors to Clock Times

Create errors in the given clock times (for testing).

Add Errors to Calendar Dates

Create errors in the given calendar dates (for testing).

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Convert a calendar date to seconds.

Convert Seconds to Date

Convert seconds to a calendar date.

Convert English to Crontab

Create a crontab expression from human language.

Convert Crontab to English

Rewrite a crontab entry into human language.

Find Week of the Month

Quickly find the week of the month of a calendar date.

Find Days Since the Start of Year

Quickly find how many days have passed since start of the year.

Find Days Till the End of Year

Quickly find how many days are left till the end of the year.

Find Days Till a Specific Date

Quickly find how many days are left till a specific date.

Convert Seconds To Minutes

Find how many minutes are in the given seconds.

Convert Seconds To Hours

Find how many hours are in the given seconds.

Convert Seconds to Days

Find how many days are in the given seconds.

Convert Seconds to Weeks

Find how many weeks are in the given seconds.

Convert Seconds to Months

Find how many months are in the given seconds.

Convert Seconds to Years

Find how many years are in the given seconds.

Convert Minutes to Seconds

Find how many seconds are in the given minutes.

Convert Minutes To Hours

Find how many hours are in the given minutes.

Convert Minutes to Days

Find how many days are in the given minutes.

Convert Minutes to Weeks

Find how many weeks are in the given minutes.

Convert Minutes to Months

Find how many months are in the given minutes.

Convert Minutes to Years

Find how many years are in the given minutes.

Convert Hours To Seconds

Find how many seconds are in the given hours.

Convert Hours to Minutes

Find how many minutes are in the given hours.

Convert Hours to Weeks

Find how many weeks are in the given hours.

Convert Hours to Months

Find how many months are in the given hours.

Convert Hours to Years

Find how many years are in the given hours.

Convert Days to Seconds

Find how many seconds are in the given days.

Convert Days to Minutes

Find how many minutes are in the given days.

Convert Days to Weeks

Find how many weeks are in the given days.

Convert Days to Months

Find how many months are in the given days.

Convert Days to Years

Find how many years are in the given days.

Convert Weeks to Seconds

Find how many seconds are in the given weeks.

Convert Weeks To Minutes

Find how many minutes are in the given weeks.

Convert Weeks To Hours

Find how many hours are in the given weeks.

Convert Weeks to Days

Find how many days are in the given weeks.

Convert Weeks to Months

Find how many months are in the given weeks.

Convert Weeks to Years

Find how many years are in the given weeks.

Convert Months to Seconds

Find how many seconds are in the given months.

Convert Months To Minutes

Find how many minutes are in the given months.

Convert Months To Hours

Find how many hours are in the given months.

Convert Months to Days

Find how many days are in the given months.

Convert Months to Weeks

Find how many weeks are in the given months.

Convert Months to Years

Find how many years are in the given months.

Convert Years to Seconds

Find how many seconds are in the given years.

Convert Years To Minutes

Find how many minutes are in the given years.

Convert Years To Hours

Find how many hours are in the given years.

Convert Years to Days

Find how many days are in the given years.

Convert Years to Weeks

Find how many weeks are in the given years.

Convert Years to Months

Find how many months are in the given years.

Convert a Bird's Age to Human Years

Find how old a human would be if he/she was a bird.

Convert a Human's Age to Bird Years

Find how old a bird would be if it was a human.

Convert Earth Time to Mars Time

Convert clock time on Earth to clock time on Mars.

Convert Mars Time to Earth Time

Convert clock time on Mars to clock time on Earth.

Convert Earth Date/Time to Stardate

Convert Earth time to Star Trek's stardate.

Convert Stardate to Earth Date/Time

Convert Star Trek's stardate to Earth time.

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Print a list of clock times with hours equal mins equal secs.

Generate Equal Y-M-D Dates

Print a list of calendar dates with years equal months equal days.

Set Straight Clock Hands

Print a list of all clock times when hands are in a straight line.

Normalize Clock Times

Given clock times in various formats, convert them to one format.

Normalize Calendar Dates

Given calendar dates in various formats, make them the same format.

Rotate Clock Times

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Rotate Calendar Dates

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Freeform Time Calculator

Perform freeform clock time arithmetics.

Freeform Date Calculator

Perform freeform calendar date arithmetics.

Calculate Clock Sum

Find the sum of hours plus minutes plus seconds.

Calculate Calendar Sum

Find the sum of years plus months plus days.

Find Clock Sum

Find clock hand position so that hr + min + sec equals your value.

Find Calendar Sum

Find calendar date so that year + months + day equals your value.

Generate Clock Emojis

Print all clock icons from 00:00 to 24:00.

Create Zalgo Time

Generate date and time that only Zalgo can understand.


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Created with love by

We're Browserling — a friendly and fun cross-browser testing company powered by alien technology. At Browserling our mission is to make people's lives easier, so we created this collection of time and date tools. All our tools share the same user interface, so as soon as you learn how to use one of the tools, you'll be a master of all tools. Behind the scenes, our time and date tools are actually powered by our web developer tools that we created over the last couple of years. Check them out!

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