Redmoon Business Date Calculators — Blog https://dates.redmoonsoftware.com/blog/ Articles about business-day arithmetic, legal deadlines and calendar math. en-us Mon, 01 Jun 2026 00:00:00 GMT How to Count Business Days Between Two Dates (Without Miscounting Either End) https://dates.redmoonsoftware.com/blog/counting-business-days-between-two-dates/ https://dates.redmoonsoftware.com/blog/counting-business-days-between-two-dates/ The off-by-one trap, why weekends and holidays both matter, and the inclusive-vs-exclusive question that quietly breaks most manual counts. Mon, 01 Jun 2026 00:00:00 GMT business daysfundamentals Net 30 Sounds Simple. When Is the Invoice Actually Due? https://dates.redmoonsoftware.com/blog/net-30-when-is-the-invoice-actually-due/ https://dates.redmoonsoftware.com/blog/net-30-when-is-the-invoice-actually-due/ Net 30 means 30 calendar days from a start date you have to agree on first. Here is what "the start date" really means and how to avoid disputes. Sat, 30 May 2026 00:00:00 GMT financeinvoicing Your SLA Clock Should Tick in Business Hours, Not Calendar Hours https://dates.redmoonsoftware.com/blog/sla-deadlines-in-business-hours-not-calendar-hours/ https://dates.redmoonsoftware.com/blog/sla-deadlines-in-business-hours-not-calendar-hours/ A "4-hour response" promise made at 5pm Friday is meaningless unless your SLA defines the working calendar. Here is how to measure it correctly. Fri, 29 May 2026 00:00:00 GMT ITSLAsupport Calculating the Last Working Day of a Notice Period https://dates.redmoonsoftware.com/blog/calculating-the-last-working-day-of-a-notice-period/ https://dates.redmoonsoftware.com/blog/calculating-the-last-working-day-of-a-notice-period/ Resignation notice in weeks or days, weekends, and holidays all collide here. A clean method for finding the real last working day. Thu, 28 May 2026 00:00:00 GMT HRemployment The 3-Business-Day Right of Rescission, Counted Correctly https://dates.redmoonsoftware.com/blog/three-business-day-right-of-rescission-explained/ https://dates.redmoonsoftware.com/blog/three-business-day-right-of-rescission-explained/ Federal TILA rescission gives borrowers three business days to cancel. Saturdays count, Sundays and holidays do not. The counting rules in plain terms. Wed, 27 May 2026 00:00:00 GMT legalcompliancelending How Many Working Days Are in Each Month? It Depends on More Than the Calendar https://dates.redmoonsoftware.com/blog/how-many-working-days-are-in-each-month/ https://dates.redmoonsoftware.com/blog/how-many-working-days-are-in-each-month/ Working-day counts per month drive payroll, capacity, and billing. Why two countries with the same calendar can disagree on the answer. Tue, 26 May 2026 00:00:00 GMT business daysplanning Projecting a Real Estate Closing Date From Contract Acceptance https://dates.redmoonsoftware.com/blog/projecting-a-real-estate-closing-date-from-contract/ https://dates.redmoonsoftware.com/blog/projecting-a-real-estate-closing-date-from-contract/ Inspection, financing, and appraisal contingencies usually run in business days. Chaining them correctly is how you hit a realistic closing. Sun, 24 May 2026 00:00:00 GMT real estatedeadlines Tax Filing Extensions: Don't Just Add Six Months https://dates.redmoonsoftware.com/blog/tax-filing-extension-deadlines-dont-add-six-months/ https://dates.redmoonsoftware.com/blog/tax-filing-extension-deadlines-dont-add-six-months/ A filing extension moves the deadline, but weekends, holidays, and the Emancipation Day quirk mean the new date is rarely the obvious one. Fri, 22 May 2026 00:00:00 GMT compliancetax