Is the Last Time I Did X logger free to use online?

Yes. It is free to use online with no account, sign-up, or download.

Can I undo an accidental log?

Yes. Each activity card has an Undo last button that removes its newest timestamp.

What should I track with a days-since logger?

It works well for occasional chores, self-care, maintenance, calls, hobbies, treats, and other events where knowing the time since the last occurrence is more useful than maintaining a streak.

A habit tracker, reversed

Last time I did X?

Q: What is a reverse habit tracker?

A reverse habit tracker records when something happened and counts forward from that moment. Instead of building a daily streak, it tells you how long it has been since the last time.

Q: Where are my activities and timestamps saved?

Your activity names and timestamps are stored in local storage on the browser and device you are using.

Tap when something happens. Come back later and see exactly how long it has been—no streaks, guilt, or spreadsheet required.

My last-time log Saved on this device

Time since

Your activities

0 tracked 0 check-ins

Your first clock starts here.

Name something on the left, then tap its button whenever you do it.

A different kind of consistency

What is a reverse habit tracker?

A normal habit tracker asks, “Did you do this today?” A reverse habit tracker asks, “How long has it been since you last did this?” Every button press resets that activity's clock to now, so the useful number is the time that has passed since your latest check-in.

Tap in the moment

Press “I did this now” when the activity happens. The current date and time are recorded instantly.

Count forward

See minutes, hours, or days since the last time, with a live readout that keeps itself current.

Skip streak pressure

There is no target and no broken streak—just an honest, useful view of elapsed time.

Useful for the irregular stuff

When a days-since tracker works best

This logger is made for things that matter but do not belong on a daily checklist. Track home maintenance, haircuts, phone calls, hobbies, deep cleaning, self-care, or anything else where “when did I last...?” is the real question.

Changed a filterCalled a friendHad takeoutRepotted plantsBacked up filesTook a real day off

1
Name the activity.
Add any event you want to remember without creating a schedule.
2
Tap when it happens.
The button saves the current timestamp and resets the elapsed-time clock.
3
Check the gap later.
Return whenever you wonder how many days it has been since the last time.

Good to know

Last Time I Did X logger FAQs

What is a reverse habit tracker?

It is a tracker that counts time since an activity instead of counting a daily streak. Each log becomes the new “last time,” and the clock counts forward from there.

Is this Last Time I Did X logger free to use online?

Yes. The logger is free to use online and does not require an account, download, or sign-up.

Where are my activities and timestamps saved?

They are saved in local storage on this browser and device. Clearing browser data or using another device can remove or separate your history, so this is a lightweight personal log rather than a permanent backup.

Can I track more than one activity?

Yes. Add as many occasional habits or events as you need. Each one gets its own live time-since readout and history.

Can I undo an accidental button press?

Yes. Use “Undo last” on the activity card to remove its newest timestamp. Removing an activity also offers a brief undo option.

Does this replace reminders or medical records?

No. This page does not send reminders or create a durable record. Do not rely on it for medication, medical treatment, safety checks, or other time-critical tasks.

Keep the right kind of track

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