# Time Differences in Different Time Zones | Summary and Q&A

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May 10, 2011
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Time Differences in Different Time Zones

## TL;DR

Calculate the flight duration from San Francisco to New York and from New York to San Francisco.

## Key Insights

• 🛫 Flight durations need to be calculated by adjusting the departure and arrival times to the same time zone.
• ⌛ New York is three hours ahead of San Francisco, so the times need to be converted accordingly.
• 🎅 The flight from San Francisco to New York takes 5 hours and 33 minutes.
• 🎅 The return flight from New York to San Francisco takes 6 hours and 37 minutes.
• 🧑‍🏭 The return flight is longer, possibly due to headwinds or other factors.
• ✈️ To calculate the flight duration accurately, it is important to consider the time zone difference.
• ⌛ Converting the times to military time can simplify the subtraction process.

## Transcript

Read and summarize the transcript of this video on Glasp Reader (beta).

### Q: How do you calculate the flight duration between San Francisco and New York?

To calculate the flight duration, you need to consider the time zone difference between the two cities. Convert the departure and arrival times to the same time zone and then subtract the departure time from the arrival time.

### Q: Is there a time zone difference between San Francisco and New York?

Yes, New York is three hours ahead of San Francisco. So, to make accurate calculations, the times need to be adjusted accordingly.

### Q: How do you convert the time from one time zone to another?

To convert the time from one time zone to another, you need to add or subtract the time difference between the two time zones. In this case, you would add three hours to convert San Francisco time to New York time.

### Q: Which flight takes longer, from San Francisco to New York or the return flight?

The return flight from New York to San Francisco takes longer. The flight duration is calculated by subtracting the departure time from the arrival time, accounting for the time zone difference.

## Summary & Key Takeaways

• Calculate the duration of the flight from San Francisco to New York, accounting for the time zone difference.

• Calculate the duration of the return flight from New York to San Francisco, also accounting for the time zone difference.

• Compare the two flight durations to determine which flight is longer.