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
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Draw a Clock
Draw an analog or digital clock.
Draw a Calendar
Draw a daily, monthly, or yearly calendar.
Calculate Seconds Since Midnight
Calculate how many seconds have passed since midnight.
Calculate Seconds Till Midnight
Calculate how many seconds are left till midnight.
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.
Increment Clock Time
Add hours, minutes, and seconds to the given time.
Decrement Clock Time
Subtract hours, minutes, and seconds from the given time.
Increment Calendar Dates
Add days, months, and years to the given date.
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.
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 Leap Years
Print a list of all leap years.
Find Common Years
Print a list of all common years.
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.