Free time tools
A growing collection of small, fast tools from the team behind Left. Count down to dates, calculate time between moments, work out days since events, business days, school days, sleep, fasting, year progress, time zones, Unix timestamps, and more. For iPhone widgets, habits, streaks, Ahead dates, Since dates, and Planner, download Left.
Countdowns
Pick a target date, see days, hours, minutes, and seconds remaining.
How many days, hours, and minutes remain until New Year.
How far into the year you are, down to the minute.
What percent of the year is over, and what percent is left, right now.
Days, weeks, months, or hours until December 25th.
Western and Orthodox Easter dates, with a live countdown.
Spring equinox countdown - Northern or Southern hemisphere.
Summer solstice countdown - pick your hemisphere.
Autumn equinox countdown - works for both hemispheres.
Winter solstice countdown - pick your hemisphere.
Time remaining until January 1st.
How long until October 31st.
Countdown to February 14th.
Fourth Thursday of November in the US.
Second Sunday of May in the US.
Third Sunday of June in the US.
Enter a birthday, see exactly how long until the next one.
Countdown to Saturday morning.
Date math
The exact number of days between any two dates.
Duration in hours between two dates and times.
Pick a target date, see whole weeks remaining.
Working days, Monday through Friday, between two dates.
Add or subtract years, months, weeks, days, hours, or minutes.
Go back in time by subtracting a duration.
Your exact age in years, months, and days.
The ISO 8601 week number for any date.
Exact minutes between two clock times.
Duration between two clock times.
Since & streaks
Count days, weeks, and months since an event.
Exact hours and minutes since a date and time.
Days until the next yearly anniversary.
Days sober and next recovery milestone.
Count days, weeks, and months in a habit streak.
Work & school
Add or subtract working days from a date.
Work hours between dates with breaks.
Time left until the end of your workday.
Weekday school days between two dates.
Weeks, days, and percent left in a semester.
Meeting duration, elapsed time, and remaining time.
Planning countdowns
Live time left until a deadline.
Days until your next trip or holiday.
Days, weeks, and months until a wedding.
Years, months, and days until retirement.
Time left in the current calendar quarter.
Percent elapsed and left for any fiscal year.
Simple hours, minutes, and seconds timer.
Time converters
Convert between epoch seconds and human dates.
Convert epoch milliseconds and human dates.
Convert days, weeks, months, years, hours, and minutes.
Compare one meeting time across time zones.
Estimate reading time from words and speed.
Life & health
A population-level estimate based on lifestyle factors.
From last menstrual period, conception date, or ultrasound.
Calculate how long you will sleep between bedtime and alarm.
Hours and minutes between two fast times.
When does your 16:8, 18:6, or custom fast end?
Real-time countdown of an in-progress fast.
Start noticing what matters.
Download Left on your iPhone to see the time you have left, dates you are looking forward to, build the habits you want to keep, and become a better version of yourself.
Scan with your camera to find Left on the App Store. Or search "Left" on the App Store.