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Change Calendar Time Zone

Animated walkthrough of changing the calendar time zone in WithinEHR

Changing your calendar time zone ensures every appointment displays at the correct local time while preserving the actual moment the appointment occurs. In a distributed healthcare environment, time zone accuracy is not a convenience — it is a patient safety requirement.

Why Time Zone Accuracy Matters​

Patient Safety and Medication Management​

Time zone misalignment poses direct clinical risks.

  • Dosing Intervals: For medications requiring strict timing — insulin, anticoagulants, chemotherapy — a time zone error can cause a missed or double dose.
  • Stat Orders: Urgent orders must be timestamped relative to the patient's local time to ensure immediate action.
  • Audit Trails: EHR systems rely on linear timestamps. Inconsistent time zones can make the sequence of clinical events ambiguous — legally and medically.
  • Regulatory Compliance: HIPAA and other healthcare frameworks require precise audit logs. Inconsistent time zones can invalidate logs during a compliance audit.

Telehealth and Care Coordination​

  • Appointment Continuity: Prevents no-shows caused by confusion between provider and patient local times.
  • Hand-offs: Synchronized timestamps ensure no lapse in monitoring during patient transfers between facilities or shifts.

How Time Zone Changes Affect Events​

  • Existing events shift, not the moment: A visit at 10:00 AM Eastern will display as 3:00 PM London time after a time zone change — but it is still the same global moment.
  • New events use the new zone: Any appointments created after the change are stored and displayed in the updated time zone.

Steps to Change Your Calendar Time Zone​

  1. Go to Settings in WithinEHR.
  2. Open Practice Information.
  3. Find the Operational Hours section.
  4. Select the time zone that matches your primary practice location.
  5. Click Save to apply.
  6. Review a few upcoming appointments to confirm they display at the correct local time.

Tips​

  • Use city-based time zones (e.g., "America/New_York" or "Europe/London") instead of fixed GMT offsets so your schedule adjusts automatically for daylight saving time.
  • If you work across regions, check whether you can set a personal time zone separate from the practice time zone.