◎ EN ▾
Free date and work tools

Make dates and deadlines simple.

Count working days, find a deadline and total your weekly hours. See the rules, skipped dates and calculation behind every result.

Calculate working days ↓

Calendar settings

Saved on this device
Non-working weekdays

Checked weekdays are skipped.

One YYYY-MM-DD date per line, or separate with commas. No public holidays are added automatically.

Working days counted

—

Your calculation, day by day

MonTueWedThuFriSatSun
Working dayNon-working weekdayExcluded dateNot counted

Dates are calendar dates, not timestamps. Custom dates on non-working weekdays are skipped only once.

Calculation breakdown
DateStatus

Your everyday toolkit

Business Days Calculator — Custom WeekendsCount working days between two dates with custom weekends, excluded dates and explicit start/end inclusion. See a calendar and export the breakdown.Deadline Calculator — Add or Subtract WorkdaysAdd or subtract working days from a start date using your saved weekends and excluded dates. See how every counted or skipped day affects the deadline.Work Hours Calculator — Weekly TimesheetCalculate daily and weekly work hours with unpaid breaks and explicit overnight shifts. View hours/minutes, decimal totals and export your timesheet.

How it works

Start with the days your week actually follows. Mark non-working weekdays, add any dates you want to exclude and choose whether the start or end counts. DayKit shares those calendar settings between the business-day and deadline tools. The calendar shows counted days, skipped weekdays and custom exclusions, with a CSV export for the complete calculation. For weekly hours, enter each enabled shift, unpaid breaks and whether the end is on the next day. Your settings stay in this browser. No account or automatic holiday assumptions are needed.

Frequently asked questions

Are public holidays included automatically?

No. Add the dates you want to exclude. Custom weekends and exclusions are your own planning rules, not an official holiday calendar.

Are my settings uploaded?

No. Calendar rules and weekly shifts remain in this browser. Clear this site’s data to remove them. CSV exports are created on your device.

Does this apply payroll or legal deadline rules?

No. The tools calculate according to your explicit inputs. They do not infer jurisdiction, overtime, public holidays or contract-specific counting rules.