Provixon— Digital Solutions

Free tool

Working-hours response time calculator

Enter your opening hours and when an enquiry arrives. See when the first-reply deadline really falls under three ways of counting the clock. The default is the Saturday 17:40 example from our WhatsApp case desk.

Days you are open
The same deadline counted three ways
How the clock is countedDeadline falls atCustomer waits
Clock runs 24/7 (ignores opening hours)Staff are blamed for time the office was closed.Sat 18:401 h
Restart when the office reopensThe customer’s real wait is quietly extended.Mon 10:00 (next week)40 h 20 min
Pause and resume (counts working time only)Fair to the customer and to staff.Mon 09:40 (next week)40 h

The clock model has no holidays or time zones: it shows the arithmetic, not a calendar. “Customer waits” is real elapsed time from the enquiry to the deadline.

How to use it

Set the days and hours you are staffed, pick the day and time an enquiry lands, and set the reply promise in working minutes. The table shows the deadline and the customer’s real wait for each method. If the three rows match, your deadline fits inside one open window. If they differ, the way you count is changing what you promise.

Related guides: lead follow-up automation and the working-hours clock and where a shared WhatsApp number breaks.

About the calculator

Questions, answered.

A 60-minute first-reply deadline for an enquiry at 17:40 on a Saturday, with the office closing at 18:00 and closed on Sunday, falls at Saturday 18:40 if the clock ignores opening hours, Monday 10:00 if it restarts when the office reopens, and Monday 09:40 if it pauses and resumes. The first blames staff for time they could not work. The second quietly lengthens the customer’s wait by 20 minutes. Only the third is fair to both.
Pause and resume, because it keeps the promise to the customer (the allowance is 60 working minutes) without counting closed hours against staff. It is also the method Provixon Connect uses for its case clocks.
No. It models a repeating week so the arithmetic is visible. Real systems need a holiday calendar and a stored time zone; they should store the calendar version used for each deadline so editing your hours never silently moves an existing deadline.