Indian Standard Time

High school (ages 12+)
Mathematics & Numbers

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/indian-standard-time

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the time zone designation?Indian Standard Time (IST)
2. What is the UTC offset?+05:30
3. Why does India use only one time zone instead of many?India is very wide from west to east, so solar noon can be two hours apart. Using one time zone makes it easier to run trains, talk on the phone, and do business together.
4. Where does the 82.5° E line go in India?The 82.5° E line runs through the state of Uttar Pradesh. That line was chosen as the reference for IST.

Longitudinal Spread: The geographical distance measured east to west across a region.
Solar Time: Time based on the position of the sun in the sky.
IANA Time Zone Database: A publicly available database that defines time zones and daylight saving rules.
UTC Offset: The difference in hours and minutes between a specific time zone and Coordinated Universal Time.