1
SAI INTERNATIONAL SCHOOL
STD VI SUB:GEOGRAPHY
CH-2 SUBTOPIC-4 LONGITUDES &Time MINDMAP-4
PRIME MERIDIAN
0° AT
GREENWICH
TIME
MEASURING
STARTS
WEST: EAST :
BEHIND IN AHEAD IN
TIME TIME
LOCAL TIME STANDARD TIME
WHEN SUN LOCAl TIME
IS OF THIS
OVERHEAD MERIDIAN IS
TAKEN AS
STANDARD
TIME .