getCurrentTimezone abstract method
Gets the current device's IANA timezone string.
Returns the timezone identifier from the device's system settings (e.g., "America/New_York", "Europe/London", "Asia/Tokyo").
This value includes DST rules and is the authoritative source for local time calculations on the backend.
Returns
The IANA timezone identifier string.
Example
final timezone = await deviceService.getCurrentTimezone();
print('Timezone: $timezone');
// Output: Timezone: America/New_York
Implementation
Future<String> getCurrentTimezone();