security blanket. 1  a small blanket or other soft cloth, as clutched or stroked by a child for the feeling of comfort and security it affords. 2  anything that gives a person a sense of safety or freedom from anxiety.
PST and EST are time zones in North America. PST is Pacific Standard Time and EST is Eastern Standard Time. There is a difference of 3 hours between these time zones. The Timezone Offsets of PST and EST are -8 and -5 respectively. This means that PST is eight hours behind Coordinated Universal Time (UTC), while EST is only five hours behind.
However, before calculating the difference we should first get to know what CST and IST stand for. CST is Central Standard Time observed in North America and Central America while IST stands for India Standard Time that is observed across whole of India. While IST is 5:30 hours ahead of GMT, CST is 6 hours behind GMT.