How it works
Quickly calculate the exact number of days between two specific dates.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
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?startDate=Start DateDate · Optional
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?endDate=End DateDate · Optional
Outputs
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resultResultText · Primary output
result contains the calculator’s complete rendered result area, including its visible result cards, tables, charts, and messages.
Simple tool to count the days between two dates
Description
The Day Counter is a focused utility designed specifically to calculate the total number of days between a start date and an end date. While simple, it is highly useful for project management, tracking a fitness journey, or counting down to a vacation or wedding.
Inputs
- Start Date: The beginning date.
- End Date: The final date.
Outputs
- Difference: The total number of elapsed days.
Chart
- N/A: This tool provides a direct numeric day count.
“Good to Know”
- Absolute Count: This tool uses the absolute time difference, meaning it doesn’t matter if the end date is before the start date—it will tell you the total days between them.
- Time of Day: Standard date calculations typically assume the start of the day (midnight).
- Broad Use: Use this tool for habit tracking (e.g., “Days since I started X”) or simple event countdowns.
Examples
Example 1: Vacation Countdown
- Input: Start: July 1, End: July 15
- Output: 14 days
Example 2: Short Duration
- Input: Start: Monday, End: Friday
- Output: 4 days
Example 3: Long Duration
- Input: Start: Jan 1, 2023, End: Jan 1, 2024
- Output: 365 days