Working days and business dates
Count working days between dates or find a date after adding working days. Choose a manual Monday-to-Friday calendar or the covered Taiwan government calendar.
Work and dates calculators
For work and business estimates, distinguish dates, hours, per-unit costs and period costs so denominators and time periods stay consistent.
Which tool fits this question?
Calendar days include weekends. Working days exclude weekends and entered holidays; work hours also deduct breaks. Gross margin is a per-item ratio. Break-even includes fixed costs to calculate sales quantity, while freelance quotes use whole-project time and platform fees.
- How many days remain after excluding weekends and my chosen holidays?
- What is my effective hourly pay including commuting and work expenses?
- With fixed costs and contribution per item known, how many units must I sell?
Ordinary date and duration calculations do not determine statutory deadlines, overtime pay or minimum wages. A revenue target does not guarantee sales.
Work and dates · 13 tools
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Calendar days and date offsets
Find the calendar-day gap between two dates and a separate date obtained by adding or subtracting days. Weekends remain part of the calendar count.
Time between local dates
Subtract two local date-times within the same time zone. Include the date when a journey crosses midnight.
Working time
Calculate time worked after subtracting unpaid or excluded breaks. Enter full dates and times for overnight shifts.
Tax-inclusive and pre-tax price
Convert a quoted price between tax-inclusive and pre-tax amounts. Select whether the entered amount already includes the tax.
Gross margin and markup
Distinguish gross margin from markup when comparing a selling price with product cost. Both percentages use the same profit but different denominators.
Effective hourly earnings
Compare take-home earnings with all the time and money needed to do the job. Include commuting and additional work-related time.
Freelance project quote
Build a quote from the time and direct costs a project requires. Set aside hours for revisions and administration rather than hiding them.
Inventory reorder point
Find an inventory threshold for reviewing replenishment of one product. Keep stock on hand, incoming orders and backorders separate.
Simple investment payback
Find when cumulative undiscounted cash inflows first recover an initial investment. Enter each period's net cash flow in order, including negative flows.
Taiwan overtime pay estimate
Estimate additional overtime pay under Taiwan's general monthly-paid Labor Standards Act framework. This scope assumes normal work of eight hours daily and 40 hours weekly.
Taiwan annual leave entitlement
Estimate statutory annual leave under Taiwan's Labor Standards Act anniversary system. Use continuous service and the leave used within the current entitlement period.
Break-even unit sales
Estimate how many units of one product must sell to cover fixed costs. Use the same accounting period for all fixed costs.