Second, tight quads can contribute to weak hamstring muscles. 1  Hamstring muscles are the quads' opposing muscles; they are located at the back of your thigh. 2  An increased lower back arch, technically called excessive lordosis, is often accompanied by very tight (and painful) back muscles.
Time difference between India (IST) and USA (CST here)-. Difference between coordinates is 90+82.5 = 172.5 degrees. (90-82.5 is not difference, as one is East to GMT and other is in West to GMT) 172.5 x 4 = 690 Minutes. or 11 hours 30 minutes.
India's Time Zones were established in 1884. Originally there were two Time Zones, the Bombay Time and Calcutta Time. Bombay continued to have a different time (39 minutes behind IST) until 1955. IST, which is GMT plus 5.30 hrs, came into existence in 1905. In certain time-zone maps, IST is also designated E*.