Online Timer
A clear countdown for the task in front of you.
Time & DateTime & Date
Calculate dates and durations, track time, compare time zones, make calendars, and plan work or study sessions.
Work Hours Calculator
Add up shifts and breaks without the spreadsheet.
Time & DateMeeting Planner
Find a time that works on both sides of the ocean.
Time & DateDiscord Timestamp Generator
Share a time that displays correctly for everyone.
Time & DateDate Difference Calculator
Count elapsed or inclusive calendar days and whole weeks between dates.
Time & DateDate Add and Subtract Calculator
Shift dates by years, months, weeks, and days with clear month-end rules.
Time & DateBusiness Days Calculator
Count or move working dates with your own weekends and holiday list.
Time & DateDay of Year Calculator
Convert calendar dates and ordinal days, with leap-year validation.
Time & DateISO Week Number Calculator
Convert ISO week dates and calendar dates across week-year boundaries.
Time & DateLeap Year Calculator
Check century exceptions and list leap years in an inclusive range.
Time & DatePrintable Calendar Generator
Print month or year calendars and download a clean A4 PDF.
Time & DateUnix Timestamp Converter
Convert Unix seconds, milliseconds, and explicitly offset ISO date-times.
Time & DateTime Zone Converter
Convert IANA wall times with explicit DST overlap and gap handling.
Time & DateStopwatch
Measure elapsed time, record lap splits, and export cumulative lap times to CSV.
Time & DatePomodoro Timer
Build a focus and break schedule with editable work sessions and automatic phase changes.
Time & DateInterval Timer
Create a repeated sequence of named intervals with pause, progress, and a CSV schedule.
Time & DateCountdown to Date
Count down to an event in a chosen time zone, including daylight saving gap and overlap handling.
Time & DateTime Duration Calculator
Add and subtract durations, apply a multiplier, and inspect running totals in hours, minutes, and seconds.
Time & DateDecimal Hours Converter
Convert decimal hours and durations with explicit increment rounding and adjustable display precision.
Time & DateWorld Clock
View selected live time-zone clocks with dates, current UTC offsets, and downloadable snapshots.
Time & DateLap Time Calculator
Analyze individual lap times or cumulative splits with fastest laps, equal-distance pace, and CSV export.
Time & DatePlayback Speed Calculator
Calculate video or audiobook time at a speed, or find the speed needed to fit a time window.
Time & Date