WhenNote: Countdown & Days

WhenNote keeps important dates clear and easy to revisit. Organize meaningful events in flexible notebooks, understand how much time has passed or remains, and handle everyday date calculations in one focused app. Features: - Organize dates into separate notebooks - Record names, descriptions, start dates, and end dates - See elapsed, upcoming, and remaining time at a glance - Calculate and total date intervals - Add or subtract days, hours, and minutes - Reorder notebooks and entries to match your workflow - Optionally back up and restore through your private Google Drive app-data area - Use the app in English, Traditional Chinese, Simplified Chinese, or Japanese Your notes are stored on your device by default. When Google Drive backup is enabled, WhenNote requests access only to its own hidden app-data area—not your other Drive files. No ads. No tracking. No unnecessary account required.