Central Standard Time, abbreviated as CST, Central Summer Time, is abbreviated as CDT. When planning a call between Indianapolis and CST, you should keep in mind that geographical areas are in different time zones. Indianapolis is 2 hours ahead of CST. In the late 1940s, the use of daylight saving time, known as fast time, became popular in cities.
Indiana is officially in the central time zone, but some communities choose to follow fast time throughout the year, essentially aligning with the Eastern time zone.
