calibrationtimestamp

A calibration timestamp, sometimes referred to as calibration_timestamp, is a timestamp that records when a calibration procedure was performed on a measurement instrument, sensor, or system.

It serves as a basis for metrological traceability, data quality assessment, and calibration management. The timestamp is typically stored with calibration records, certificates, or within the device's metadata, and is used to determine calibration intervals and the validity of measurements.

Generation and formats: The timestamp can be generated by the device clock, synchronized with an external time source (NTP, GPS, or enterprise time server). It is commonly stored in ISO 8601 format (for example, 2025-12-24T14:30:00Z) or as Unix epoch time. In many systems, the field is named calibration_timestamp or similar.

Scope and domains: Used in laboratory equipment, industrial sensors, medical devices, and software calibration routines. It can accompany data sets, calibration certificates, and maintenance logs.

Considerations: Time accuracy and traceability; record the time zone, prefer UTC; avoid manual entry; maintain tamper-evident logs; handle clock drift; policy for re-calibration.