A vertical timeline
The timeline runs vertically: future above, past below. Scroll to zoom from a whole year down to a single day, and drag to pan. Type a year at the top to jump there, or click Back to today; it covers 1970 through 2524.
Add an event with the add button in the toolbar, or right-click the axis to create one on that date; title, date, details and color are edited in a small panel beside it. The calendar panel shows a month at a time with a colored dot on busy days, and clicking a day lists its events and holidays.
The Show menu toggles day, week, month and year ticks, the today line, holidays and anniversaries. Right-click an event and choose Add to to-dos to turn it into a to-do that stays in the same spot. There’s a schedule timeline widget for the dashboard too.
12 holiday packs
There are 12 packs: China, Japan, South Korea, United States, Germany, France, Italy, Spain, International, Christian, Jewish and Islamic. The first time, a pack is picked from your interface language (International for English); after that, add as many as you like under Settings → Timeline, and your selection wins.
The United States pack includes Thanksgiving, Independence Day and Memorial Day; the Jewish pack has Passover, Rosh Hashanah, Yom Kippur, Sukkot and Hanukkah; the Islamic pack has the first day of Ramadan, Eid al-Fitr and Eid al-Adha. Packs list commonly observed days, not official days off.
Hide any holiday you don’t need. A holiday that appears in several packs, such as Christmas, disappears everywhere with one switch. When several fall on the same day, the axis draws a single marker and hovering shows them all.
Lunar, Hebrew and Islamic dates
Holiday dates are worked out from their own calendars every year, so you never look them up by hand:
- Hebrew calendar: Jewish holidays are calculated on it, and in leap years Purim follows Adar II.
- Islamic calendar: Islamic holidays follow the Umm al-Qura calendar. Local moon sighting can differ by a day, so go by your local announcement.
- Chinese lunar calendar: Chinese New Year, Mid-Autumn and the rest follow it, and leap months don’t count. In the Chinese interface, hovering shows that day’s lunar date; other interface languages hide it.
- Solar terms: Qingming and the winter solstice in the China pack are based on solar terms and shown only for 1900–2099; Japan’s Vernal and Autumnal Equinox Days are shown for 1980–2099.
Easter and the days tied to it, such as Good Friday and Pentecost, are calculated for each year. If your PC or browser doesn’t support a calendar, that pack is marked unavailable instead of showing wrong dates.
Jot it down, add the time later
A new to-do needs only a line of text; there’s no time by default. Enter saves, Shift+Enter adds a line, and the title box grows as you type. When you need one, click Add time and pick a date, a time or All day; drag the date, hour and minute left or right to adjust them, or click to type.
More options holds a deadline, repeat, notifications and Show in timeline. A to-do shown on the timeline shares its title, time and done state with its spot on the axis.
The list sorts by time, earliest first, by default; you can sort by creation date instead, or switch to Custom order and drag. The time label changes with distance: a date when it’s a week or more away, a countdown like “5h 20m left” as it gets close, “3d overdue” once it’s late. Items due within 24 hours turn blue and overdue items red. With your permission, AI tools connected through MCP can read and write your to-dos too.
Recurring to-dos
Timed to-dos, all-day ones included, can repeat daily, weekly or on the weekdays you pick, with an optional Repeat until date. To-dos without a time can’t repeat.
Each occurrence is its own item: finishing this week’s doesn’t touch next week’s, and a missed one doesn’t disappear. When you edit, choose This occurrence or This and following; Stop repeating keeps the history that’s already there.
Repeats follow the local time of the time zone you set them in, and daylight saving changes don’t create duplicates. With Show in timeline on, each occurrence appears on its date.
Reminders
Reminders are off by default. Turn on Notify when due in a to-do’s More options and choose Desktop, Email or both. All-day to-dos remind you at 9:00 that morning.
Reminders need 77Fox running, and minimized to the tray counts. If the PC is off or 77Fox is closed, nothing fires at the due time; missed reminders for unfinished to-dos show up the next time you open 77Fox. The web app reminds you only while its page is open in the foreground tab, and the Android app only while it’s open on screen.
Email reminders need you to be signed in, go to your 77Fox account address and are capped at 30 an hour. They’re also sent by the running desktop app at the due time; 77Fox’s server only forwards them and doesn’t keep the to-do text.