diff --git a/m_timing.f90 b/m_timing.f90
index d043117..aa01637 100644
--- a/m_timing.f90
+++ b/m_timing.f90
@@ -19,8 +19,8 @@ contains
     ! make the default job runlimit to be 6 months
     job_runlimit = 6 * 30 * 24 * 60
 
-    ! make the default job runlimit to be 12 hours
-    job_runlimit = 12 * 60
+    ! make the default job runlimit to be 12 hours -> one month
+    job_runlimit = 12 * 60 * 30 * 2
 
     write(out,'(a30,3x,i20)') 'job_runlimit (default):',job_runlimit