Free tool

Pill Travel Time Calculator

Crossing time zones on the pill? Enter your pill type, usual time, and destination to find out exactly when to take it abroad.

1. What type of pill are you on?

Combined pill

Estrogen + progestin. Brands: Lo Loestrin, Ortho Tri-Cyclen, Yasmin, Sprintec. ~24-hour window.

Traditional mini-pill

Norethisterone or levonorgestrel. Brands: Noriday, Norgeston. Strict 3-hour window.

Desogestrel mini-pill

Desogestrel 75mcg. Brands: Cerazette, Cerelle. Flexible 12-hour window.

Not sure? Check the active ingredient on your pill packaging or ask your pharmacist.

2. What time do you usually take your pill at home?

3. Your home time zone

4. Destination time zone

This calculator provides general guidance based on your pill type's protection window. It is not medical advice. Always consult your doctor or pharmacist for guidance specific to your situation and pill brand.

Never guess your timing again

Track your pill schedule at home and abroad

Estroclic adapts your reminders to any time zone and logs exactly when you took your last pill, so you always know where you stand, no mental math required.

Download on Android