Days Until Calculator
Calculate how many days are remaining until any date. Live countdown timer, business days (excl. weekends), weeks left, months left, and progress bar.
⏳ Set Date & Target Milestone
📊 Event Metrics Breakdown
📋 Recent Countdowns
No recent countdowns loaded. Use presets or pick a date to save here.
📅 Arbitrary Date Math
Need to calculate the exact calendar distance between two specific dates (e.g. project start to end) instead of counting down from today?
Open Date Difference Calculator🎯 Quick Presets & Holidays
Overview & Capabilities
Find exactly how many days are left until an upcoming birthday, wedding, vacation, holiday, or deadline. Features a live-ticking countdown clock and business days calculation.
How to Use
Key Features
Common Use Cases
Tips & Best Practices
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Frequently Asked Questions
Q How do you calculate days until a date?
Subtract today's current date and time from the target date and time. Divide the difference in milliseconds by 86,400,000 to find the total calendar days remaining.
Q Does the calculator account for leap years?
Yes, our date calculations rely on standard browser Date objects which automatically include February 29th in leap years (like 2024 and 2028).
Q What is the business days countdown?
The business days calculation starts from tomorrow and counts only Monday through Friday until the target date, excluding weekends (Saturdays and Sundays).
Q How do you calculate weeks and months remaining?
Divide total calendar days remaining by 7 to find weeks. Divide by the standard average of 30.4375 days per month to find calendar months remaining.
Q Can I share my countdown page?
Yes, once you select an event, click the Share button to copy a link that you can send to friends or family.