Figure It Quick

Time and Date Calculators

Countdowns, birthdays, weekday checks, date differences, sleep planning and time-based fun.

Time Since CalculatorCount elapsed days, weeks and years. Days Until CalculatorCount down to a target date. Date Difference CalculatorCompare two dates. Age CalculatorCalculate completed age. 90 Days From TodayFind a future date. Unix Timestamp ConverterConvert Unix seconds. Days Until CalculatorCount calendar days to a deadline or event. Sleep Cycle CalculatorEstimate a bedtime. Day of the WeekFind the weekday for a date. Day of the Week CalculatorFind the weekday for any date. Time CalculatorsPlan deadlines, durations and date gaps. Weekday CountdownCount weekdays before a date.

Useful guides

Shortcuts, examples and related reading for people who want the math behind the tools.

Date Math Playbook

Calendar days, birthdays, weekdays and leap years.

Time Planning Playbook

Minutes, breaks, schedules and sleep-cycle estimates.

Try Conversions

Switch to unit, food, travel and comparison calculators.

Time step-by-step guides

For exact calendar planning, start with date difference or days until. For work and school planning, add weekday countdown because weekends can change the useful time available.

Date calculation guide

How calendar days, weekdays and date ranges work.

Time math guide

Use hours, minutes, deadlines and schedule estimates without mixing units.

Weekday countdown

Use this when weekends should not count.

How to use this page

Pick the link or tool that matches the question you are trying to answer. Use one real example first, then open a related guide or worksheet only if you need more detail.

Keep it simple

You do not need every link on the page. Start with one result, change one important input if you want to compare options, and use the answer to choose your next step.

Useful next places

Decision guides can help when you know the question but not the tool. Number tools is there when you already know the calculation you need.

Choosing the right page here

Browse time and date calculators for countdowns, age, weekdays, sleep cycles, birthdays and movie marathons. This page is meant to narrow the choice, not make you open every link. Start with the card that matches the job in front of you, then use the related planner or number tool only when it helps you fill in a real figure.

A good route is simple: pick one page, use one realistic example, then check whether the answer changes when the most uncertain input moves. That keeps the site useful for ordinary planning instead of turning the category into a long list of similar links.

Useful routes from this page