diff --git a/definitions/grib2/timeproc.def b/definitions/grib2/timeproc.def
index 8a4180de8..820b5a6f0 100644
--- a/definitions/grib2/timeproc.def
+++ b/definitions/grib2/timeproc.def
@@ -46,6 +46,8 @@ concept timeproc {
  "48h"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 48;}
  "72h"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 72;}
  "120h"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 120;}
+ "240h"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 240;}
+ "360h"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 360;}
  "7 days"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 168;}
  # 28 days
  "month"   = {indicatorOfUnitForTimeRange=1; lengthOfTimeRange = 672;}