Why Paper Timesheets Fail in Rental Operations
Event crew work across multiple venues, often starting before dawn and finishing after midnight. Traditional timesheets — whether paper forms or basic clock-in apps — rely entirely on self-reporting. When a dispute arises about whether someone arrived at 6am or 7am, there is no objective record to settle it.
For rental companies billing clients for crew hours, this is not just an internal payroll problem. It is a credibility issue. A GPS-verified time clock creates an objective, auditable record of when crew were on site and where they were when they clocked in.
How GPS Time Clock Verification Works
When a crew member clocks in through the system, their GPS coordinates are captured alongside the timestamp. The same happens at clock-out. This creates a location-stamped record for every shift without requiring manual address entry.
The system stores a location history throughout the shift, not just the start and end points. This is particularly useful for crew who work across multiple areas of a large venue or move between nearby sites during a single day.
Geofencing
Geofencing adds a layer of validation. You define a geographic boundary around each work site — a circle with a configurable radius in metres — and the system flags whether the crew member was within that boundary when they clocked in and out.
The geofence validation uses the Haversine formula to calculate the actual distance between the crew member's GPS coordinates and the site centre point. This accounts for the curvature of the earth and provides accurate distance calculations regardless of location.
Geofence status is recorded as valid or invalid for both clock-in and clock-out independently. A crew member might clock in on site (valid) but forget to clock out until they are in the van heading home (invalid). The system captures both states rather than rejecting the entire entry.
Photo Verification
For additional verification, the time clock supports photo capture at both clock-in and clock-out. This is optional and configurable per project or per client requirement. The photos are stored against the time entry and provide visual confirmation that the right person was on site.
Automatic Overtime Detection
The system automatically calculates regular and overtime hours for each time entry. Any shift exceeding eight hours triggers overtime detection, splitting the entry into regular hours and overtime hours.
Pay calculation handles both hourly and daily rate structures. For hourly rates, overtime multipliers are applied (defaulting to 1.5x if not configured). For daily rates, the system rounds to half-day increments — so a 6-hour shift on a daily rate counts as a half day, while anything over that counts as a full day.
Different rate types can be configured per crew member: standard hourly rate, overtime rate, weekend rate, and holiday rate. This means a crew member working a Saturday shift automatically gets their weekend rate applied without manual adjustment.
Approval Workflow
Time entries go through an approval workflow before they hit payroll. Managers can review entries, see the GPS data and geofence status, and approve or reject with a reason. Rejected entries are returned to the crew member for correction rather than silently deleted.
Stale entries — where a crew member forgets to clock out entirely — are handled by an automatic process that flags entries open beyond a configurable threshold. This prevents phantom shifts from accumulating unnoticed.
Break Periods
Break periods are tracked separately within each time entry. This matters for compliance with working time regulations and for accurate billing. Breaks are deducted from total hours worked, and the system records break start and end times independently.
From Time Clock to Payroll
Once time entries are approved, they aggregate into pay periods. The system calculates total regular hours, overtime hours, and gross pay per crew member per period. This data exports in formats compatible with standard payroll systems.
For companies that bill clients for crew time, the same data feeds into project costing. You can see exactly how many crew hours a project consumed, what that cost internally, and how it compares to what you charged the client.
The Practical Impact
GPS-verified time tracking changes three things. First, it eliminates timesheet disputes — the data is objective. Second, it gives clients confidence in crew billing — you can show exactly when your team was on site. Third, it catches errors early — an unapproved overtime entry or a missed clock-out gets flagged before it becomes a payroll problem. For rental companies running crew across multiple venues every week, that adds up to significant time saved and fewer billing disputes.