Days Until Calculator

Use this calculator whenever you need a quick calendar-day count to (or since) any date—vacations, milestones, deadlines, or general "how many days until" questions that don't need a live timer or business-day exclusions.

Enter a target date. The calculator compares it to today's UTC calendar date (time of day is ignored).

Days remaining use the same signed calendar-day math as Days Between Dates: the difference between today and the target at UTC midnight. When "Include today" is off, that difference is the day count. When it is on, one day is added for future dates so today counts as the first day toward the target.

Weeks remaining are whole weeks (floor of days ÷ 7). Months remaining are approximate calendar months and days between the dates, using the same age-style breakdown as the Age Calculator—not fixed 30-day months.

For a live second-by-second countdown with hours and minutes, use the Countdown Timer. For two arbitrary dates, use the Date Difference Calculator.

Today: 1 July 2025. Target date: 1 January 2026. Include today: off.

Days remaining: 184. Weeks remaining: 26 complete weeks.

With Include today turned on, the count becomes 185 days, since 1 July itself is added as the first day of the wait.

The Days Until Calculator counts calendar days to any future date—or how many days ago a past date was—with an optional include-today setting for planning.

Countdown To Date adds an optional UTC time, event name, and hour/minute updates when you need more detail than calendar days alone.

The Countdown Timer gives a live, second-by-second display with days, hours, minutes, and seconds when the target includes a specific time of day in UTC.

The Days Until Birthday Calculator finds the next occurrence of a birthday from month and day only—no birth year required.

The How Many Days Left In Year Calculator counts UTC calendar days remaining through December 31 from today or a custom date.

Seasonal calculators target the next occurrence automatically—no date to enter. Fixed dates include Valentine's Day (February 14), Independence Day (July 4), Halloween (October 31), Christmas (December 25), and New Year's Day (January 1).

Movable US holidays use the same rules as the dynamic event pages: Mother's Day (second Sunday in May), Father's Day (third Sunday in June), Memorial Day (last Monday in May), Labor Day (first Monday in September), Good Friday and Easter Sunday (Gregorian), Thanksgiving (fourth Thursday in November), Black Friday (the day after Thanksgiving), and Cyber Monday (the Monday after Thanksgiving).