Can I shorten my prayers on a long daily commute?

What counts as travel

Shortening (qasr) is for a traveler. The majority of scholars, from the Maliki, Shafi'i and Hanbali schools, set the distance at about 80-89 km one way; Hanafi estimates are similar, around 77-89 km. A 30-minute train ride across a city doesn't come close, so most commuters simply pray their normal prayers. See What is qasr prayer?

Very long commutes

Some people commute from one city to another every day, for example 100 km or more each way by train. Scholars differ here:

• Distance-based view (majority): if the one-way trip passes the travel distance, you're a traveler once you leave your town's built-up area, even if you do it daily. You can shorten on the way and at work, then pray in full again at home.
• Custom-based view: some scholars, including Ibn Taymiyyah, define travel by what people normally call a journey. A daily routine to the office and back is usually not seen as "traveling", so they'd say pray in full.

Both are respected views. If you're unsure, praying in full is always valid.

Combining is often the real answer

For most commuters the real problem isn't the number of units but the timing, such as Maghrib passing while you're stuck on the train. Islam keeps things easy:

Ibn Abbas reported that the Prophet ﷺ once combined prayers in Madinah without travel, fear or rain, so that his community wouldn't be put in hardship (Sahih Muslim 705). Many scholars allow occasional combining for a real need, as long as it doesn't become a daily habit without reason. See How do I combine Dhuhr and Asr when traveling?

Practical options

• Pray Dhuhr before you leave work if the time has started.
• In winter, Asr and Maghrib can fall on the commute; plan a stop at a station prayer room or quiet corner.
• On a train with no space, pray the obligatory prayer seated if you truly can't stand, and some scholars say repeat it later if you can.
• Students face the same issue. See Can I combine prayers because of my class schedule?