<ul>
 	<li><strong><span>New Equipment</span></strong><span>: Newly-acquired timers or stopwatches should undergo an initial calibration to establish a baseline of accuracy.</span></li>
 	<li><strong><span>Regular Calibration</span></strong><span>: Periodic calibration is recommended—typically annually or more frequently if the device is used in high-precision contexts or subjected to harsh environments.</span></li>
 	<li><strong><span>After Repairs or Modifications</span></strong><span>: If the device has been serviced, repaired, or modified, a recalibration is essential to ensure its continued performance accuracy.</span></li>
 	<li><strong><span>Change in Operating Environment</span></strong><span>: Calibration may be necessary if the device is relocated, exposed to different temperature/humidity conditions or used under significantly different workload or stress.</span></li>
</ul>
<strong><span>Conclusion</span></strong><span>
In conclusion, timer and stopwatch calibration is a foundational practice to maintain accurate time-measurements, ensuring reliability and compliance with quality standards. By performing regular calibrations, you can trust your elapsed-time readings, avoid timing errors, and make confident decisions based on dependable data.</span>