China Standard Time (also known as Beijing Time) runs throughout the (very vast) country — meaning sunsets in the west of the country can sometimes even push midnight.  Similarly, India also only has one national time zone, India Standard Time, which sees sunsets up to two hours earlier in the east of the country than those in the west. 

Today I Learned There Are At Least 6 Time Zones In Australia   And Why Have We Done This To Ourselves - 45Today I Learned There Are At Least 6 Time Zones In Australia   And Why Have We Done This To Ourselves - 81Today I Learned There Are At Least 6 Time Zones In Australia   And Why Have We Done This To Ourselves - 62