Weeks to Seconds Converter

How many seconds are in one week?

There are exactly 604,800 seconds in one week. This is calculated by multiplying:

• 7 days per week
• × 24 hours per day
• × 60 minutes per hour
• × 60 seconds per minute
• = 604,800 seconds

How do I convert seconds to weeks?

To convert seconds to weeks, divide the number of seconds by 604,800. For example, 1,209,600 seconds ÷ 604,800 = 2 weeks. Our calculator performs this conversion instantly for any value you enter.

How many seconds are in 2 weeks (a fortnight)?

A fortnight (2 weeks) contains 1,209,600 seconds. This is simply 2 × 604,800 = 1,209,600 seconds. The term "fortnight" comes from Old English and means "fourteen nights," representing 14 days or 2 weeks.

How many seconds in a year compared to weeks?

A year contains approximately 31,557,600 seconds (based on 365.25 days to account for leap years). This equals about 52.18 weeks. The slight difference from exactly 52 weeks (31,449,600 seconds) accounts for the extra day in leap years.

What is a Unix timestamp and how does it relate to seconds?

A Unix timestamp is the number of seconds that have elapsed since January 1, 1970, 00:00:00 UTC (the "Unix epoch"). It's commonly used in computer systems to track time. For example, to find how many weeks have passed since the Unix epoch, divide the current Unix timestamp by 604,800.

Why use seconds instead of other time units?

Seconds are the SI base unit for time and provide precision for scientific calculations, computer systems, and technical applications. They're particularly useful in programming, data processing, and when you need exact measurements. Seconds eliminate ambiguity since they're consistent (unlike months which vary in length).