What the user chooses
An AM, PM or EV period when that period is configured and actually available.
Help Centre · Booking
What is the difference between AM/PM/EV and one-hour slots?
AM/PM/EV presents a booking window. One-hour slots present a candidate start time. In both cases, actual duration and day feasibility still have to be checked.
A different presentation, comparable checks.A candidate period remains subject to revalidation before final saving.
Two ways to present time, not two different realities
AM/PM/EV leaves a wider window. A one-hour slot gives a more precise proposed start. Neither model means the service lasts 60 minutes or guarantees an exact arrival time or final availability.
01AM / PM / EV periods
Choose a window rather than an exact time
This model suits days where route, service duration and visit order require some flexibility.
What the calculation still checks
Service and option duration, employees, existing day, breaks, absences and relevant travel.
Remember: an AM, PM or EV period does not promise an exact arrival time.
02One-hour slots
Present a candidate start time
The one-hour label is used to choose a start; it does not turn the service into a 60-minute appointment.
What the user chooses
A proposed start time. Actual duration comes from the package and its options.
What the calculation still checks
The same field reality: employee, schedule, nearby bookings, total duration and travel.
03Compare the two models
The displayed choice changes; field constraints remain
The main difference is how precise the choice is when booking.
01
AM / PM / EV
A booking period whose time limits depend on the configuration.
What the choice means
A broader time window without a guaranteed precise arrival time.
- Choice: a booking period.
- Possible evaluation: total duration, eligible or selected employees, schedules, breaks, documented absences, existing appointments, nearby visits, and estimated travel.
- Does not guarantee: a precise arrival time or final availability before saving.
02
One-hour slots
A proposed start time without limiting the service to 60 minutes.
What the choice means
A more precise presentation of the start while preserving total service duration.
- Choice: a proposed start time.
- Possible evaluation: total duration, eligible or selected employees, schedules, breaks, documented absences, existing appointments, nearby visits, and estimated travel.
- Does not guarantee: the actual arrival time or final availability before saving.
Displayed times and travel remain estimates.
04Read the limits
What both models share — and what neither promises
A different presentation does not remove duration, team or route constraints.
Common checks
- Date, address and territory when configured.
- Package, options and total duration.
- Employees, schedules, breaks, absences and existing bookings.
- Relevant travel before saving.
Neither model guarantees
- An exact arrival time.
- A 60-minute service duration.
- Final availability before saving.
- An optimal route or the absence of field disruptions.
Related resources
Continue configuration or diagnosis
Each resource completes a precise aspect of the booking models.
Collection
Booking and availability
Explore guides about calculation, time models, absence of periods, and appointment modification.
Explore booking guides →Calculation
How does MapMyStaff determine availability?
Understand how the request context is used to evaluate candidate periods.
Understand availability calculation →Diagnosis
Why is no period available?
Follow a structured check when no period matches the requested context.
Diagnose the absence of periods →Management
How do you modify or cancel an appointment?
See what information may need to be rechecked when an existing appointment changes.
Understand modification or cancellation →