Clock to seconds converter

World's simplest time tool

With this browser-based application, you can convert clock time provided in hours, minutes, and seconds into just seconds. Given a time in HH:MM:SS format, it calculates HH*3600 + MM*60 + SS and prints this value in the output box. It supports AM/PM time formats as well as clock times beyond 24 hours. Created by computer nerds from team Browserling.
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Clock to seconds converter tool What is a clock to seconds converter?
This is a quick online utility for calculating how many seconds there are in the given time. When you input a full clock time in the input box (in format H:M:S), it gets split into hours, minutes, and seconds, and using the math formula hours×60×60 plus minutes×60 plus seconds, it finds the seconds. If seconds are missing (format is H:M), then the formula becomes hours×60×60 plus minutes×60. If minutes are also missing, then the formula becomes hours×60×60. As an extra feature, hours, minutes, and seconds aren't limited to just 24 hours, 60 minutes, and 60 seconds. You can use any hours value, any minutes value, and any seconds value. For example, the input time "72:00:00" will find the number of seconds in three days (72 hours is 3×24 hours) and the input time "0:1000:0" will find seconds in 1000 minutes. Timeabulous!
Clock to seconds converter examples Click to use
Multiple Clock Times
In this example, we convert multiple clock times to seconds. Each clock time is listed on a new line and the spacing between input times is preserved in the output.
00:00:00 00:00:01 00:01:00 01:00:00 01:59:59 12:00:00 18:30:30 23:59:59 24:00:00
0 1 60 3600 7199 43200 66630 86399 86400
Partial Clock Times
This example finds how many seconds there are in clock times that are partially written. Some of the clock times contain just the hours and some others contain just hours and minutes.
1am 1:10 a.m. 14:44 11pm 23
3600 4200 53040 82800 82800
Time Beyond 24 Hours
In this example, we go beyond the regular 24-hour clock. In fact, we even go beyond 60 minutes and 60 seconds.
24:00:01 48:00:00 72 00:100:00 100:100:100
86401 172800 259200 6000 366100
Pro tips Master online time tools
You can pass input to this tool via ?input query argument and it will automatically compute output. Here's how to type it in your browser's address bar. Click to try!
https://onlinetimetools.com/convert-time-to-seconds?input=00%3A00%3A00%0A%0A00%3A00%3A01%0A00%3A01%3A00%0A01%3A00%3A00%0A01%3A59%3A59%0A12%3A00%3A00%0A18%3A30%3A30%0A23%3A59%3A59%0A%0A24%3A00%3A00
All time tools
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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 hours are in the given days.
Quickly find how many days are in the given hours.
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 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.
Coming soon These time tools are on the way
Draw a Clock
Draw an analog or digital clock.
Draw a Calendar
Draw a daily, monthly, or yearly calendar.
Create an Animated Timer
Draw an animation that counts down (or up) time.
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.
Truncate Clock Time
Drop seconds, minutes or hours from the given clock time.
Round Clock Time
Round the given clock time up or down.
Decrement Calendar Dates
Subtract days, months, and years from the given date.
Split Time Into Intervals
Split the given time into multiple intervals.
Generate Time Intervals
Generate a list of equal or unequal time intervals.
Generate Valid Clock Times
Generate a list of random valid clock times.
Generate Invalid Clock Times
Generate a list of random invalid clock times.
Generate Valid Calendar Dates
Generate a list of random valid calendar dates.
Generate Invalid Calendar Dates
Generate a list of random invalid calendar dates.
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.
Find Leap Years
Print a list of all leap years.
Find Common Years
Print a list of all common years.
Find Age Difference
Find the age difference between two or more people.
Convert a Cat's Age to Human Years
Find how old a human would be if he/she was a cat.
Convert a Human's Age to Cat Years
Find how old a cat would be if it was a human.
Convert a Dog's Age to Human Years
Find how old a human would be if he/she was a dog.
Convert a Human's Age to Dog Years
Find how old a dog would be if it was a human.
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 palindromic clock times.
Generate Palindromic Dates
Print a list of palindromic 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.
Format a Clock Time
Given a clock times in any formats, convert it to another format.
Format a Calendar Date
Given a calendar date in any formats, convert it to another format.
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.
Create Zalgo Time
Generate date and time that only Zalgo can understand.