Chapter 7 International Date Line
Top questions
See all →- What is the time difference between the GMT and the IST? IST is 5hrs and 30 min ahead of GMT. 2
- Which meridian determines Indian Standard Time (1ST)? 82°30′ E is the standard meridian of India. 2
- Which meridian is used to determine world standard Time (GMT)? World Standard Time (GMT) is determined using Prime Meridian at 0° longitude. 1
- Using an atlas, tell in which of the following routes the IDL will be crossed and show them on the map. (1) Mumbai – London – New York – Los Angeles – Tokyo – IDL will be crossed. (2) Delhi – Kolkata – Singapore – Melbourne – IDL will not be cr... 1
- Why is the IDL considered with respect to the 1800 meridian only? Our 24-hour day starts at 12 midnight. Because of the earth’s rotation, the midnight occurs at different times, at different places. As the... 1
- Why doesn’t the IDL pass through land? If the IDL had passed through a land or some islands, the people there would have had to follow different dates and timings because dates wo... 1