How do I fast with a 9 to 5 job?

Last reviewed · Jun 29, 2026 · Not medical advice
Quick answer

A workday fast works best when your eating window matches meetings, lunch, commute, and family meals.

Step by step

01 Choose a lunch-friendly window.
02 Plan coffee and water.
03 Keep your first meal ready.

The longer answer

For many office schedules, 12 PM to 8 PM or 10 AM to 6 PM can be easier than random daily changes.

Tip

Remove decisions from busy work hours.

Common mistake

Waiting until work stress decides your first meal.

Track in the app

Track activity type, fast duration, water, caffeine, energy, and completion.

Safety note
Educational only. People who are pregnant, breastfeeding, under 18, have diabetes, take glucose-affecting medication, have a history of eating disorders, or feel unwell should speak with a qualified clinician before fasting.

Related questions

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Fast Goblin answers the timing questions automatically — end times, windows, and streaks in one place.