With this browser-based application, you can split any calendar period into several smaller calendar intervals. In the options, you can set two calendar dates – the start and end of the original full period, and then enter the number of smaller intervals you want this full period to be divided into. All these intervals can be either the same length or each can have a random length. You can switch between these two modes in the options and also append the precise interval lengths to the output. Created by computer nerds from team Browserling.
With this browser-based application, you can split any calendar period into several smaller calendar intervals. In the options, you can set two calendar dates – the start and end of the original full period, and then enter the number of smaller intervals you want this full period to be divided into. All these intervals can be either the same length or each can have a random length. You can switch between these two modes in the options and also append the precise interval lengths to the output. Created by computer nerds from team Browserling.
This is a quick online utility for splitting the given date range into multiple continuous ranges. For example, if you have started a new project and you want to divide it into four equal stages, then by entering the start date of the project and the expected completion date of the project in this program, you can create four intervals of equal length for all four development stages. The start and end dates of the range can be entered in the options using the date formats "YYYY-MM-DD hh:mm:ss" or "YYYY-MM-DD". For example, a range with the starting date of "2025-04-01" and the ending date of "2025-08-01" can be divided into two equal intervals "2025-04-01 – 2025-06-01" and "2025-06-01 – 2025-08-01" (here each interval is 61 days long). You can split your date range into an arbitrary number of parts by specifying the part count in the options. In addition to creating intervals of equal length, you can also split a range into random intervals. This can be accomplished by switching to the "Random Lengths Intervals" mode. When this mode is active, the previous example with the range "2025-04-01 – 2025-08-01" can create two random intervals "2025-04-01 – 2025-07-13" (103 days long) and "2025-07-13 – 2025-08-01" (19 days long). Often, you want the random intervals to have some minimal length. For example, instead of 19 random days, you may want the random interval to always be at least 30 days. If you need to enforce such a constraint on the minimum random interval, then you can set this minimum value in the options. You can specify the minimum interval length in days (e.g. "2 days"), hours (e.g. "5 hours"), minutes (e.g. "10 minutes"), and seconds (e.g. "30 seconds"). You can also combine these values and set a minimal interval to something like "2 days 5 hours 15 seconds". Additionally, you can print the length of each generated interval in the output (useful when generating random calendar intervals). Timeabulous!
This is a quick online utility for splitting the given date range into multiple continuous ranges. For example, if you have started a new project and you want to divide it into four equal stages, then by entering the start date of the project and the expected completion date of the project in this program, you can create four intervals of equal length for all four development stages. The start and end dates of the range can be entered in the options using the date formats "YYYY-MM-DD hh:mm:ss" or "YYYY-MM-DD". For example, a range with the starting date of "2025-04-01" and the ending date of "2025-08-01" can be divided into two equal intervals "2025-04-01 – 2025-06-01" and "2025-06-01 – 2025-08-01" (here each interval is 61 days long). You can split your date range into an arbitrary number of parts by specifying the part count in the options. In addition to creating intervals of equal length, you can also split a range into random intervals. This can be accomplished by switching to the "Random Lengths Intervals" mode. When this mode is active, the previous example with the range "2025-04-01 – 2025-08-01" can create two random intervals "2025-04-01 – 2025-07-13" (103 days long) and "2025-07-13 – 2025-08-01" (19 days long). Often, you want the random intervals to have some minimal length. For example, instead of 19 random days, you may want the random interval to always be at least 30 days. If you need to enforce such a constraint on the minimum random interval, then you can set this minimum value in the options. You can specify the minimum interval length in days (e.g. "2 days"), hours (e.g. "5 hours"), minutes (e.g. "10 minutes"), and seconds (e.g. "30 seconds"). You can also combine these values and set a minimal interval to something like "2 days 5 hours 15 seconds". Additionally, you can print the length of each generated interval in the output (useful when generating random calendar intervals). Timeabulous!
In this example, we split the year 2024 into 12 equal parts. As you know, each month has a different number of days, so the 12 equal parts don't fall on the first day of each month. Also, as the year 2024 is the leap year, it has an extra day, and thus when it's divided into 12 equal intervals, each interval gets 30 days and 12 hours.
In this example, we generate 6 random calendar intervals over 100 years – from the year 1950 to 2050. As the intervals are generated randomly, they can be of any length (as small as 1 second and as large as 99+ years).
In this example, we're planning a trip to 4 destinations. As we couldn't decide how much time we should spend at each destination, we let our algorithm randomly determine the length of each journey. As the summer is pretty long, we also want each trip to last at least 20 days. To do this, we enter the summer range in the options, select the random interval mode, and enter the minimum interval length to be equal to 20 days. As a result, we get 4 intervals printed to the screen, and we additionally print their precise lengths next to each interval as well.
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!
Draw a binary clock that shows time in base two.
Draw a clock in Salvador Dali style showing custom time.
Draw a weird-looking clock that shows a particular time.
Draw a π clock with π hours in a day.
Draw a 360° clock with 360 degrees in a day.
Create a GIF animation of an analog clock.
Create a GIF animation of a digital clock.
Create a GIF animation of a clock that's broken.
Draw a daily calendar for a single day.
Draw a weekly calendar for any week of the month.
Draw a yearly calendar for the entire year.
Draw a calendar that shows moon phases.
Draw a calendar that shows the seasons and Sun's position.
Draw a calendar that shows when the Sun rises and sets.
Draw a calendar that shows when the Moon rises and sets.
Draw an animation that counts down (or up) time.
Create a GIF animation of a sand clock.
Animate a timeless clock that goes in an infinite spiral.
Visualize the given clock time as a pie chart.
Visualize the current year as a pie chart.
Visualize the given clock time as a bar chart.
Visualize the current year as a bar chart.
Visualize the given clock time as a pixel wall (1px = 1sec).
Visualize the current year as a pixel wall (1px = 1day).
Visualize the given clock time as bubbles.
Visualize the current year as bubbles.
Visualize the given clock time as an arrow.
Quickly calculate time passed and left in the current day as pct.
Quickly calculate time passed and left in the current year as pct.
Convert regular clock time to binary clock time (bintime).
Quickly regular calendar date to binary date (bindate).
Convert regular clock time to decimal clock time (dectime).
Quickly regular calendar date to decimal date (decdate).
Convert regular clock time to hexadecimal time (hextime).
Quickly regular calendar date to hexadecimal date (hexdate).
Create a GIF animation of the Moon for a particular month.
Create an animation of the Moon orbiting the Earth.
Create a 88 day animation of the Mercury orbiting the Sun.
Create a 225 day animation of the Venus orbiting the Sun.
Create a 365 day animation of the Earth orbiting the Sun.
Create a 687 day animation of the Mars orbiting the Sun.
Create a 4,330 day animation of the Jupiter orbiting the Sun.
Create a 10,756 day animation of the Saturn orbiting the Sun.
Create a 30,687 day animation of the Uranus orbiting the Sun.
Create a 60,190 day animation of the Neptune orbiting the Sun.
Create a 90,560 day animation of the Pluto orbiting the Sun.
Create an animation of all planets in the Solar System.
Create an animation of Phobos and Deimos orbiting Mars.
Animate Io, Europa, Ganymede, Callisto orbiting Jupiter.
Animate Titan, Rhea, Iapetus, Enceladus orbiting Saturn.
Animate Titania, Oberon, Umbriel, Ariel, Miranda orbiting Uranus.
Animate Triton, Nereid, and Proteus orbiting Neptune.
Animate Charon, Nix, Hydra, Kerberos, Styx orbiting Pluto.
Find dates when two or more planets align in a straight line.
Find dates when the solar eclipse happens.
Find dates when the lunar eclipse happens.
Calculate your age based on the orbital period of other planets.
Represent a clock time as a matrix.
Represent a calendar date as a matrix.
Represent a clock time as a vector.
Represent a calendar date as a vector.
Draw a time series chart.
Given a bunch of time intervals, find overlapping intervals.
Generate a bunch of overlapping time intervals.
Generate a bunch of non-overlapping time intervals.
Generate random clock time intervals.
Given a bunch of date intervals, find overlapping intervals.
Generate a bunch of overlapping date intervals.
Generate a bunch of non-overlapping date intervals.
Generate random calendar date intervals.
Swap a clock's hour hand with minute hand.
Find the reverse of the given clock time.
Find the inverse of the given clock time.
Shift the given clock time by any time interval.
Change the clock scale from 24 hours to any other hours.
Generate a list of valid clock times (for testing).
Generate a list of invalid clock times (for testing).
Generate a list of valid calendar dates (for testing).
Generate a list of invalid calendar dates (for testing).
Create errors in the given clock times (for testing).
Create errors in the given calendar dates (for testing).
Convert a calendar date to seconds.
Convert seconds to a calendar date.
Create a crontab expression from human language.
Rewrite a crontab entry into human language.
Quickly find the week of the month of a calendar date.
Quickly find how many days have passed since start of the year.
Quickly find how many days are left till the end of the year.
Quickly find how many days are left till a specific date.
Find how many minutes are in the given seconds.
Find how many hours are in the given seconds.
Find how many days are in the given seconds.
Find how many weeks are in the given seconds.
Find how many months are in the given seconds.
Find how many years are in the given seconds.
Find how many seconds are in the given minutes.
Find how many hours are in the given minutes.
Find how many days are in the given minutes.
Find how many weeks are in the given minutes.
Find how many months are in the given minutes.
Find how many years are in the given minutes.
Find how many seconds are in the given hours.
Find how many minutes are in the given hours.
Find how many weeks are in the given hours.
Find how many months are in the given hours.
Find how many years are in the given hours.
Find how many seconds are in the given days.
Find how many minutes are in the given days.
Find how many weeks are in the given days.
Find how many months are in the given days.
Find how many years are in the given days.
Find how many seconds are in the given weeks.
Find how many minutes are in the given weeks.
Find how many hours are in the given weeks.
Find how many days are in the given weeks.
Find how many months are in the given weeks.
Find how many years are in the given weeks.
Find how many seconds are in the given months.
Find how many minutes are in the given months.
Find how many hours are in the given months.
Find how many days are in the given months.
Find how many weeks are in the given months.
Find how many years are in the given months.
Find how many seconds are in the given years.
Find how many minutes are in the given years.
Find how many hours are in the given years.
Find how many days are in the given years.
Find how many weeks are in the given years.
Find how many months are in the given years.
Find how old a human would be if he/she was a bird.
Find how old a bird would be if it was a human.
Convert clock time on Earth to clock time on Mars.
Convert clock time on Mars to clock time on Earth.
Convert Earth time to Star Trek's stardate.
Convert Star Trek's stardate to Earth time.
Print a list of clock times with hours equal mins equal secs.
Print a list of calendar dates with years equal months equal days.
Print a list of all clock times when hands are in a straight line.
Given clock times in various formats, convert them to one format.
Given calendar dates in various formats, make them the same format.
Cyclically shift HH, MM, SS time parts to the left or right.
Cyclically shift YYYY, MM, DD date parts to the left or right.
Perform freeform clock time arithmetics.
Perform freeform calendar date arithmetics.
Find the sum of hours plus minutes plus seconds.
Find the sum of years plus months plus days.
Find clock hand position so that hr + min + sec equals your value.
Find calendar date so that year + months + day equals your value.
Print all clock icons from 00:00 to 24:00.
Generate date and time that only Zalgo can understand.
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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!
