D-Day 計數器

使用方法

1. Type an event name in the Event name field。
2. Pick the target date。
3. Toggle Repeat annually on if the event recurs each year (e.g. a birthday)。
4. Read the live countdown in days, hours, minutes, and seconds。
5. Copy the share link to send the counter to someone。

範例

• Setting name "Flight" and date 2026-08-01 shows a countdown like D-53, updating every second。
• With Repeat annually on, a birthday set to any past year always counts toward the next occurrence。