How Many Seconds in 1 Day?

Find out exactly how many seconds there are in 1 day. Our calculator provides the precise conversion between time units.

Time Unit Converter

1days
86,400seconds

How Many Second in 1 day?

There are exactly 86,400 seconds in 1 day. This converter provides a precise calculation for this commonly needed time unit conversion.

Understanding Time Unit Conversion

Converting between time units is essential for many everyday calculations and planning tasks. Whether you're calculating project timelines, scheduling events, or simply trying to understand how different time measurements relate to each other, knowing how to convert between units likeseconds and days is incredibly useful.

How Our Calculator Works

Our calculator performs the conversion using standard time units:

  • 1 minute = 60 seconds
  • 1 hour = 60 minutes = 3,600 seconds
  • 1 day = 24 hours = 1,440 minutes = 86,400 seconds
  • 1 week = 7 days = 168 hours = 10,080 minutes = 604,800 seconds
  • 1 month ≈ 30 days = 720 hours = 43,200 minutes = 2,592,000 seconds
  • 1 year = 365 days = 8,760 hours = 525,600 minutes = 31,536,000 seconds

For most conversions, we use standard definitions (60 seconds in a minute, 24 hours in a day, etc.). For months and years, we use the common approximations of 30 days per month and 365 days per year for simplicity, though actual calendar months vary in length and leap years have 366 days.