Live findings
Research suggests:  clicking things is, on balance, good for you. Sample size: everyone.
Research suggests:  the 3pm slump responds best to one (1) game of Snake.
Research suggests:  reaction time peaks exactly 11 minutes before a meeting you forgot about.
Research suggests:  productivity is, technically, a social construct.
Research suggests:  "just one more game" has never once been one more game.
Research suggests:  looking busy accounts for roughly 90% of looking employed.
Research suggests:  Alt-Tab is the most-used keyboard shortcut in this building.
Research suggests:  a watched progress bar never loads. A played game always does.
Research suggests:  studies confirm: the boss always walks in during your high score.
n = ∞

JustResearching / Tools / Time & Dates

Working Days Calculator

Pick two dates and find out how many actual work days are in between.

This tool counts the number of working days between two dates, skipping weekends and optionally skipping US federal holidays.

Useful for working out project deadlines, notice periods, contract lengths, or just figuring out how many days are left until a long weekend. Calendar days and working days are very different things, especially around the holidays, and this does the counting so you don't have to.

How we work it out

We step through every day from start to end and skip any day that falls on a Saturday or Sunday. If you check the holidays box, we also skip the 11 US federal public holidays for each year in your range. The start and end dates are both included in the count.

Questions

Are the start and end dates included?

Yes. If both the start and end are working days, both are counted. If you want to exclude one of them, just move the date forward or back by one day.

Which holidays does it include?

The 11 US federal holidays: New Year's Day, MLK Day, Presidents' Day, Memorial Day, Juneteenth, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving, and Christmas.

Can I use this for non-US holidays?

Not yet. For now, uncheck the holidays box to get weekdays only, then subtract your local holidays manually.