Days to Seconds Converter
Are you looking to convert days into seconds? You are at the right place. This page helps you quickly change days into seconds in a very simple way. One day equals 86,400 seconds — just multiply days by 86,400. It is useful for apps, subscriptions, trial periods, and timers.
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How to Convert Days to Seconds
The rule is very simple: 1 day = 86,400 seconds. Multiply the number of days by 86,400.
Examples: 1 day = 86,400 seconds 2 days = 172,800 seconds 7 days = 604,800 seconds 30 days = 2,592,000 seconds
Days to Seconds Formula
Seconds = Days × 86,400
seconds = days × 86400- 1 × 86,400 = 86,400 seconds
- 2 × 86,400 = 172,800 seconds
- 7 × 86,400 = 604,800 seconds
- 30 × 86,400 = 2,592,000 seconds
One civil day always has 86,400 seconds (24 hours × 60 minutes × 60 seconds).
Follow these three steps if you prefer not to memorize the formula.
Step-by-Step Method
- Take the number of days
- Multiply by 86,400
- You get the total seconds
Example 1: 1 Day to Seconds
1 × 86,400 = 86,400
So:
1 day = 86,400 seconds
Example 2: 7 Days to Seconds
7 × 86,400 = 604,800
So:
7 days = 604,800 seconds
Example 3: 30 Days to Seconds
30 × 86,400 = 2,592,000
So:
30 days = 2,592,000 seconds
Conversion Chart
| Days | Seconds |
|---|---|
| 1 | 86400 |
| 2 | 172800 |
| 3 | 259200 |
| 7 | 604800 |
| 14 | 1209600 |
| 30 | 2592000 |
| 90 | 7776000 |
| 365 | 31536000 |
Common Days to Seconds Conversions
1 Day to Seconds
1 × 86,400 = 86,400
So:
1 day = 86,400 seconds
7 Days to Seconds
7 × 86,400 = 604,800
So:
7 days = 604,800 seconds
14 Days to Seconds
14 × 86,400 = 1,209,600
So:
14 days = 1,209,600 seconds
30 Days to Seconds
30 × 86,400 = 2,592,000
So:
30 days = 2,592,000 seconds
365 Days to Seconds
365 × 86,400 = 31,536,000
So:
365 days = 31,536,000 seconds
Where It Is Used
Converting days to seconds is common when software needs a single number for time limits:
- App and software settings
- Subscription periods
- Trial limits
- Server and API timeouts
- Timers and countdowns
Enter any number of days in the calculator above to get seconds instantly.
Why 86,400 Seconds in One Day?
Every standard day has 24 hours. Each hour has 60 minutes, and each minute has 60 seconds. So 24 × 60 × 60 = 86,400 seconds per day. That is the number used in most apps, APIs, and subscription logic.
Reverse conversion: divide seconds by 86,400 to get days. Example: 172,800 ÷ 86,400 = 2 days.
Need hours or minutes instead? Multiply days by 24 for hours, or by 1,440 for minutes. Use our Days to Hours or Days to Minutes converters for those steps.
Quick reference:
| 1 day = 86,400 seconds |
| 7 days = 604,800 seconds |
| 30 days = 2,592,000 seconds |
| 90 days = 7,776,000 seconds |
| 365 days = 31,536,000 seconds |
Related Time Conversion Tools
Frequently Asked Questions
How many seconds are in 1 day?
There are 86,400 seconds in 1 day.
How do I convert days to seconds?
Multiply the number of days by 86,400. Example: 3 days × 86,400 = 259,200 seconds.
What is the formula for days to seconds?
Seconds = Days × 86,400.
How many seconds are in 7 days?
7 × 86,400 = 604,800 seconds.
How do I convert seconds back to days?
Divide seconds by 86,400. Example: 172,800 ÷ 86,400 = 2 days.