Explanations:Time zone conversion is a fundamental concept in understanding how time is standardized across different regions of the world. The Earth is divided into 24 time zones, each representing a 15-degree longitudinal segment. Greenwich Mean Time (GMT) is the time at the Prime Meridian (0° longitude), which passes through Greenwich, London. Indian Standard Time (IST) is the time zone used in India, which is 5.5 hours ahead of GMT.
To convert the time from GMT to IST, you need to add 5.5 hours to the GMT time. In this case, the given time is 7:30 PM on January 16 in GMT. Adding 5.5 hours to 7:30 PM results in 1:00 AM on the next day. Therefore, the time in Chennai, which follows IST, would be 1:00 AM on January 17.
It is important to note that when converting times across time zones, especially when the time difference is more than 12 hours, the date may change. In this example, the time difference is 5.5 hours, which is less than 12 hours, but it still crosses midnight, causing the date to change from January 16 to January 17.
Understanding time zone conversions is crucial for various applications, including international travel, scheduling meetings across different time zones, and coordinating activities in a globalized world. The concept of time zones helps in standardizing time across different regions, making it easier to communicate and coordinate activities across the globe.