The International Geophysical Calendar (IGC) is prepared and distributed by the Secretary for World Days.
The IGC can be accessed on the ISES Home Page and is also printed annually in many international journals.

2007 Geophysical Calendar

2006 Geophysical Calendar

2005 Geophysical Calendar

To view previous Geophysical calendars please go to the ftp site: ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/IGC_CALENDAR