Simple, fast tools for time zones, meeting agendas, business days, timers, billable time, and everyday office work. Runs entirely in your browser.
QuickOfficeTools is a collection of free, browser-based tools for the time-related chores of office work: converting meeting times across time zones, running timers for presentations and focus sessions, and calculating dates, working hours, and billable time. Each tool does one job on a single page and opens instantly, with no account, login, or download required.
The tools fall into three groups. Meeting and time zone tools include a Time Zone Converter covering 16 zones, a Meeting Time Finder that lists overlapping work hours between two locations, live US Time by Region and World Clock pages, and a UTC/ISO converter for timestamps and Unix epoch values. Timer and focus tools include a Pomodoro timer with 25-minute focus and 5- or 15-minute break modes, a Speaker Timer, a Quick Countdown, a Stopwatch with laps, a Multi-Timer that runs three countdowns at once, and a Tab Title Timer that shows the countdown in the browser tab. Work and date calculators include a Business Day Counter, a Working Hours Counter, a Billable Time calculator that rounds to 6-, 15-, 30-, or 60-minute increments, a Shift Calculator, Time Until, and a Due Date Countdown.
The site is built for remote and hybrid teams scheduling across time zones, managers who run meetings, presenters and event hosts, freelancers and consultants who bill by the tenth of an hour, hourly and shift workers planning their day, and project managers counting days to a deadline. Calculations run in the browser on the device being used, and every tool works on phones, tablets, and desktops. Results are estimates for planning, so confirm pay, legal deadlines, and contract dates against official records.
Build a timed agenda and keep every meeting section on schedule.
PopularFind overlap windows for remote teams across two time zones.
Convert a time between any two time zones with full DST support.
Live current time across all six US time zones at a glance.
Live clocks for major cities worldwide, updated every second.
Paste a UTC timestamp or Unix epoch to convert to any time zone.
Classic 25/5 sessions with break modes, session counter, and alert.
Countdown for presentations, speakers, and live sessions.
Set any duration and count down with an audio alert.
Count up from zero with lap tracking for calls and tasks.
Run three independent countdown timers simultaneously.
Show a live countdown in your browser tab — visible in any window.
Count workdays between dates, excluding weekends and US holidays.
Calculate hours worked between timestamps using your schedule.
Round minutes to billing increments and calculate invoice amounts.
Find your shift end time from start, duration, and break.
See how many days, hours, and minutes until any deadline.
Track time remaining on project due dates and deliverables.
Every tool runs entirely in your browser — your data never leaves your device. No account needed, no usage limits, no hidden costs. Whether you're managing remote meetings, tracking billable time, calculating deadlines, or running a Pomodoro session, QuickOfficeTools has the right tool ready in seconds.
Optimized for iPhone, iPad, and desktop. All tools work offline after the first page load, so they're ready even on a poor connection.
Yes. Every tool is free, with no account, subscription, or limit on how many times you use it.
No. Each tool opens as a normal web page and works right away in any modern browser on a phone, tablet, or computer.
The tools calculate in your browser and do not save your entries to an account. Refreshing or closing a page clears what you typed, so note any result you need to keep.
Yes. The converter, world clock, US time, and UTC tools use your browser's built-in time zone database, which applies DST rules for each region on the correct dates — for the US, the second Sunday in March and the first Sunday in November.
Use the Meeting Time Finder to see the half-hour slots where two locations are both inside working hours, then the Time Zone Converter to double-check the exact time on the meeting date.
The Speaker Timer suits a fixed talk slot, the Pomodoro timer runs 25-minute focus sessions with breaks, the Multi-Timer handles three countdowns at once, and the Tab Title Timer keeps the remaining time visible in the browser tab.
In Billable Time + Rounding, enter the minutes worked and choose the 6-minute (0.1 hour) increment. Rounding up, 37 minutes becomes 42 minutes or 0.70 hours, which is $105.00 at $150 per hour.
Yes. The Business Day Counter counts days between a start and end date, with options to include the start date, exclude weekends, and exclude US federal holidays.