The clinic's IANA zone. Never null — server-side formatters (email, SMS, voice, PDFs, labels) have no sane way to degrade and must not fall through to UTC, so an unconfigured tenant reads back as Eastern. Check bool ClinicSettingsDto.TimezoneConfigured before trusting it as the clinic's actual location.

False when the tenant has no stored timezone and string ClinicSettingsDto.Timezone is therefore the Eastern placeholder rather than a real setting. The web app uses this to prefer the workstation's own zone: rendering a Pacific clinic's day in Eastern is what produced ITE-337.

Billing/contract state: "Trial", "Active", "Suspended", or empty for legacy records (treated as "Active"). Drives GDPR consent banner visibility post-login.