During vs While: How to use them

“During” and “while” are both prepositions that indicate when something happens in relation to another event or period of time, but both are used differently. By understanding these nuances, you can use “during” and “while” correctly and effectively in your writing and speech.

During

• Focus on a specific time period: “During” is used to specify a particular period of time within which something happens. It emphasizes the duration of the time frame.  
• Followed by a noun or noun phrase: It’s typically followed by a noun or noun phrase that represents the time period.  

Examples

• “I went to the beach during the summer.” (The summer is the specific time period)
• “The lights went out during the storm.” (The storm is the specific time period)
• “She fell asleep during the movie.” (The movie is the specific time period)

While

• Focus on simultaneous actions: “While” is used to show that two actions are happening at the same time. It emphasizes the concurrency of the events.
• Followed by a clause: It’s typically followed by a clause (a group of words with a subject and verb) that describes the action happening simultaneously.

Examples

• “I read a book while I was waiting for the train.” (Reading and waiting happened at the same time)
• “The phone rang while I was taking a shower.” (The phone ringing and taking a shower happened at the same time)
• “He finished his homework while his sister was playing video games.” (Finishing homework and playing video games happened at the same time)

Key differences

In summary

• Use “during” when you want to specify the time period in which something happens.  
• Use “while” when you want to show that two actions are happening at the same time.

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