With this browser-based application, you can generate a list with all Fridays the 13th within the given calendar date range. The date range can be as short as a single month or as long as multiple years. You can customize the calendar format of the unlucky days, as well as add zero padding to single-digit numbers of the months, and specify the separator symbol for the dates. Created by computer nerds from team Browserling.
With this browser-based application, you can generate a list with all Fridays the 13th within the given calendar date range. The date range can be as short as a single month or as long as multiple years. You can customize the calendar format of the unlucky days, as well as add zero padding to single-digit numbers of the months, and specify the separator symbol for the dates. Created by computer nerds from team Browserling.
This is a quick online utility for finding dates that fall on Friday the 13th. This date is considered to be an unlucky day in many cultures and it's one of the most common prejudices. The phobia of the number "13" follows from the Scandinavian myth about the dinner of 12 gods, where the uninvited god Loki came as the 13th person and caused the death of Balder – the god of spring and light. Thus, misfortune with the number 13 has been reinforced in Western cultures. Our program lets you find all these misfortunate days both in the future and the past. You can set the search range in the options by specifying the start and end dates. For example, you can set the range to be from 2022-06-16 to 2024-01-01. In this time period, there are only two Fridays the 13th – in January 2023 and in October 2023. If you want to find Friday the 13th in a specific month, you can select the month you need from the list of months in the options. For example, the closest Friday the 13th that falls in May will be in 2033. You can choose the output format for each date that's found – the month can be printed as a number or as a word and the word "Friday" may or may not be used (because we already know it's a Friday so we can skip printing it). You can also create unique date formats using the custom format mode and the date template field. You can also enable or disable zero padding for months and adjust the delimiter character that is inserted between the dates if more than one Friday the 13th is found. Timeabulous!
This is a quick online utility for finding dates that fall on Friday the 13th. This date is considered to be an unlucky day in many cultures and it's one of the most common prejudices. The phobia of the number "13" follows from the Scandinavian myth about the dinner of 12 gods, where the uninvited god Loki came as the 13th person and caused the death of Balder – the god of spring and light. Thus, misfortune with the number 13 has been reinforced in Western cultures. Our program lets you find all these misfortunate days both in the future and the past. You can set the search range in the options by specifying the start and end dates. For example, you can set the range to be from 2022-06-16 to 2024-01-01. In this time period, there are only two Fridays the 13th – in January 2023 and in October 2023. If you want to find Friday the 13th in a specific month, you can select the month you need from the list of months in the options. For example, the closest Friday the 13th that falls in May will be in 2033. You can choose the output format for each date that's found – the month can be printed as a number or as a word and the word "Friday" may or may not be used (because we already know it's a Friday so we can skip printing it). You can also create unique date formats using the custom format mode and the date template field. You can also enable or disable zero padding for months and adjust the delimiter character that is inserted between the dates if more than one Friday the 13th is found. Timeabulous!
In this example, we find all Fridays the 13th in the years 2023, 2024, 2025, and 2026. We set the start of the interval to 2023-01-01 and the end of the interval to 2026-12-31 and allow any month to be selected. As a result, the program finds eight calendar dates in the given calendar interval.
In this example, we calculate all Fridays the 13th that fall in August. Our best friend's birthday is on August 13th and we want to find all years when it will also be on Friday. We set the range to 30 years going from 2020 to 2050 and find five birthdays in this range. We use a custom date format and output the dates separated by a vertical pipe character.
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!
