tutoring

temmet is a free browser-based timer — no accounts, no data sent anywhere. This recipe shows how to use it to track each lesson against a student and subject, with a history view that tells you where your tutoring hours actually went.

for who

Tutors, instructors, music teachers, anyone teaching one-on-one or small-group at hourly rates.

the job

Track each lesson against the right (student, subject) combination, end with a clean record of duration and total fee. Use history to spot patterns — which student or subject is taking the most time, where you're under-charging, when your busiest hours are.

how to map it

1. Save one template per (student, subject) pair. Advanced mode, single participant — yourself — at your tutoring rate for that subject. The role field becomes " · " or "" depending on how you'd like history to read.
2. Load the right template before each lesson. One tap.
3. Set a session label for what you covered — "quadratic equations", "essay structure", "bach minuet". This is what surfaces in your end-of-month review.
4. Press TIME = MONEY when the lesson starts. Press esc when it ends.
5. At month end, search history by student or subject. The search matches role, label, and participant name.

the remix

The history view is where this earns its keep. Tutoring is repetitive enough that patterns hide in plain sight without an aggregator.

• Search by subject to see how many hours you've spent on calculus this month versus algebra. Tutoring spend tends to skew — the search exposes it.
• Sort by duration to find your longest sessions. If a particular topic always runs over, that's a signal to restructure or charge differently.
• Sort by cost to find your highest-revenue students. The math is duration × rate, so the highest-cost sessions are also the most profitable hours.
• Use the default session name as a curriculum prompt: "today we're learning…" — every fresh setup nudges you to write the lesson plan.

tips

• For group lessons, add one participant per student in Advanced mode. The per-participant rate × headcount becomes the group fee. The summary's cost-per-participant is exactly what each student should be charged.
• If you tutor multiple students in the same hour (back-to-back, not group), end each session cleanly. One session per student.
• Export CSV monthly. The Total Cost column is invoice-ready.
• The active-session checkpoint means a tab refresh mid-lesson won't lose your time.