# Date into intervals splitter

## World's simplest time tool

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.

We put a browser in your browser!
Browserling

Check out our project Browserling – get a browser in your browser.

A link to this tool, including input, options and all chained tools.

Can't convert.

Date into intervals splitter tool
What is a date into intervals splitter?

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!

Date into intervals splitter examples
Click to use

Split a Year into 12 Equal Parts

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.

2024-01-01 00:00:00 – 2024-01-31 12:00:00
2024-01-31 12:00:00 – 2024-03-02 00:00:00
2024-03-02 00:00:00 – 2024-04-01 12:00:00
2024-04-01 12:00:00 – 2024-05-02 00:00:00
2024-05-02 00:00:00 – 2024-06-01 12:00:00
2024-06-01 12:00:00 – 2024-07-02 00:00:00
2024-07-02 00:00:00 – 2024-08-01 12:00:00
2024-08-01 12:00:00 – 2024-09-01 00:00:00
2024-09-01 00:00:00 – 2024-10-01 12:00:00
2024-10-01 12:00:00 – 2024-11-01 00:00:00
2024-11-01 00:00:00 – 2024-12-01 12:00:00
2024-12-01 12:00:00 – 2025-01-01 00:00:00

**Required options**

Start calendar date.

End calendar date.

Set the number of intervals to
create from the specified
date range.

Create date ranges of
equal lengths.

Set the minimum distance of
each random date range.

Output the duration of
each date interval.

Create Date Intervals of Random Lengths

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).

1950-01-01 00:00:00 – 1963-03-30 11:46:29
1963-03-30 11:46:29 – 1980-08-07 22:34:35
1980-08-07 22:34:35 – 1989-02-26 16:22:17
1989-02-26 16:22:17 – 2023-07-14 07:47:42
2023-07-14 07:47:42 – 2029-06-09 08:07:01
2029-06-09 08:07:01 – 2050-01-01 00:00:00

**Required options**

Start calendar date.

End calendar date.

Set the number of intervals to
create from the specified
date range.

Create date ranges of
random lengths.

Set the minimum distance of
each random date range.

Output the duration of
each date interval.

Random Intervals in Summer

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.

2025-06-01 00:00:00 – 2025-06-23 19:57:40 (22 days, 19 hours, 57 minutes, 40 seconds)
2025-06-23 19:57:40 – 2025-07-18 00:55:45 (24 days, 4 hours, 58 minutes, 5 seconds)
2025-07-18 00:55:45 – 2025-08-10 22:15:47 (23 days, 21 hours, 20 minutes, 2 seconds)
2025-08-10 22:15:47 – 2025-08-31 23:59:59 (21 days, 1 hour, 44 minutes, 12 seconds)

**Required options**

Start calendar date.

End calendar date.

Set the number of intervals to
create from the specified
date range.

Create date ranges of
random lengths.

Set the minimum distance of
each random date range.

Output the duration of
each date interval.

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://onlinetimetools.com/split-date-into-intervals?&range-start=2024-01-01%2000%3A00%3A00&range-end=2025-01-01%2000%3A00%3A00&count=12&equal-intervals=true&min-interval=&print-interval-length=false

All time tools

Quickly visualize your life in weeks or months.

Quickly print a list of neat-looking clock times (such as 10:11:12).

Quickly print a list of neat-looking calendar dates (such as 2055-05-05).

Quickly convert clock time in H:M:S format to seconds.

Quickly convert seconds to clock time in H:M:S format.

Quickly convert time in 24 hour format to 12 hour format.

Quickly convert time in 12 hour format to 24 hour format.

Quickly find how many seconds have passed since midnight.

Quickly find how many seconds are left till midnight.

Quickly find the difference between two clock times.

Quickly find the difference between two calendar dates.

Quickly find the age difference between two or more people.

Quickly add hours, minutes, and seconds to the given time.

Quickly subtract hours, minutes, and seconds from the given time.

Quickly add days, months, and years to the given date.

Quickly subtract days, months, and years to from the given date.

Quickly change the current time format to any new format.

Quickly change the current date format to any new format.

Quickly round the given clock time up or down.

Quickly round the given calendar date up or down.

Quickly drop seconds and minutes from a clock time.

Quickly drop days and months from a calendar date.

Quickly sort clock times in ascending or descending order.

Quickly sort calendar dates in ascending or descending order.

Quickly check if the given clock time is valid.

Quickly check if the given calendar date is valid.

Quickly find how many hours are in the given days.

Quickly find how many days are in the given hours.

Quickly find the astrological sign by the birthday or any date.

Quickly print a list of the dates of all astrological signs.

Quickly find the average value of multiple clock times.

Quickly find the average value of multiple calendar dates.

Quickly generate a list of random clock times.

Quickly generate a list of random calendar dates.

Quickly create a list of clock times that match your criteria.

Quickly generate a list of calendar dates that match your criteria.

Quickly split the given time period into multiple intervals.

Quickly split the given date period into multiple intervals.

Quickly generate increasing or decreasing clock times.

Quickly generate increasing or decreasing calendar dates.

Quickly print a list of all leap years.

Quickly print a list of all common years.

Quickly test if the given year is a leap year.

Quickly test if the given year is a common year.

Quickly find how old a cat would be if it was a human.

Quickly find how old a human would be if he/she was a cat.

Quickly find how old a dog would be if it was a human.

Quickly find how old a human would be if it was a dog.

Quickly convert a modern Gregorian date to a Julian date.

Quickly convert an ancient Julian date to a Gregorian date.

Quickly calculate the Julian day number for any calendar date.

Quickly convert the Julian day to a regular calendar date.

Quickly print a list of all Easter dates for all years.

Quickly convert a UNIX Epoch time to a human-readable time.

Quickly convert human-readable time to a UNIX Epoch time.

Quickly generate increasing or decreasing UNIX timestamps.

Quickly generate one or more random UNIX Epoch times.

Quickly convert a HH:MM:SS clock to a military HHMM clock.

Quickly convert a military clock HHMM to a HH:MM:SS clock.

Coming soon
These time tools are on the way

Draw an Analog Clock

Draw an analog clock that shows particular time.

Draw a Digital Clock

Draw a digital clock that shows particular time.

Animate an Analog Clock

Create a GIF animation of an analog clock.

Animate a Digital Clock

Create a GIF animation of a digital clock.

Draw a Calendar

Draw a daily, monthly, or yearly calendar.

Draw a Lunar Calendar

Draw a calendar that shows moon phases.

Create an Animated Timer

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

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 Current Year 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 Current Year as a Bar Chart

Visualize the current year as a bar chart.

Draw a Time Arrow

Visualize the given clock time as an arrow.

Visualize Time Intervals

Draw a visualization of multiple time intervals.

Visualize Time Series

Draw a time series chart.

Find Season by a Date

Print the season (winter, spring, summer, autumn) by a date.

Swap Clock Hands

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

Change the clock scale from 24 hours to any other hours.

Generate Valid Clock Times

Generate a list of valid clock times.

Generate Invalid Clock Times

Generate a list of invalid clock times.

Generate Valid Calendar Dates

Generate a list of valid calendar dates.

Generate Invalid Calendar Dates

Generate a list of invalid calendar dates.

Convert English to Crontab

Create a crontab expression from human language.

Convert Crontab to English

Rewrite a crontab entry into human language.

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.

Find Week of the Year

Given a calendar date, find which week of the year it is.

Find Day of the Year

Given a calendar date, find which day of the year it is.

Find Day of the Week

Given a calendar date, find which day of the week it is.

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.

Generate Palindromic Times

Print a list of symmetric clock times.

Generate Palindromic Dates

Print a list of symmetric calendar dates.

Generate Equal H:M:S Times

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

Generate Equal Y-M-D Dates

Print a list of calendar dates with yr equal mon equal day.

Calculate Clock Hand Angle

Find the angle between hour hand and minute hand.

Set Clock Hand Angle

Print a list of all clock times with a specific hand angle.

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.

Spell Clock Times

Write out clock times in full text format.

Spell Calendar Dates

Write out calendar dates in full text format.

Rotate Clock Times

Cyclically shift HH, MM, SS time parts to the left or right.

Rotate Calendar Dates

Cyclically shift YYYY, MM, DD date parts to the left or right.

Freeform Time Calculator

Perform freeform clock time arithmetics.

Freeform Date Calculator

Perform freeform calendar date arithmetics.

Create Zalgo Time

Generate date and time that only Zalgo can understand.

Subscribe!
Never miss an update

Cool!

Notifications
We'll let you know when we add this tool

Cool!