The shift calendar is a schedule defining the working and non-working hours for production. It details when equipment and labor are expected to be active.
It includes start and end times of shifts, days off, holidays, and planned maintenance periods.
In manufacturing, the shift calendar helps define "planned production time", which is essential for metrics like Overall Equipment Effectiveness (OEE) by setting clear boundaries for expected production hours versus downtime.
A shift calendar is crucial for calculating Overall Equipment Effectiveness (OEE), because it provides the necessary context for measuring equipment performance in relation to planned production time.
Here’s why a shift calendar is integral to accurate OEE calculations:
- Defines planned production time
- Accounts for availability losses
- Supports precise performance measurement
- Ensures accurate quality calculations
- Enhances data consistency and comparability
- Supports continuous improvements efforts
Multiple shift calendars can be created and assigned to specific assets enabling usage of multiple machines in different countries or different shift situations.