diff --git a/pkg/gcp/gcb/history.go b/pkg/gcp/gcb/history.go
index 34cff6e9448..9e7c7d66c3e 100644
--- a/pkg/gcp/gcb/history.go
+++ b/pkg/gcp/gcb/history.go
@@ -154,6 +154,11 @@ func (h *History) Run() error {
 		end := job.Timing["BUILD"].EndTime
 		logs := job.LogUrl
 
+		if start == "" || end == "" {
+			logrus.Infof("Skipping unfinished job from %s with ID: %s", job.CreateTime, job.Id)
+			continue
+		}
+
 		// Calculate the duration of the job
 		const layout = "2006-01-02T15:04:05.99Z"
 		tStart, err := h.impl.ParseTime(layout, start)
diff --git a/pkg/gcp/gcb/history_test.go b/pkg/gcp/gcb/history_test.go
index f7eb7596383..0dc3460dee0 100644
--- a/pkg/gcp/gcb/history_test.go
+++ b/pkg/gcp/gcb/history_test.go
@@ -104,7 +104,10 @@ func TestHistoryRun(t *testing.T) {
 					{
 						Tags: []string{"RELEASE"},
 						Timing: map[string]cloudbuild.TimeSpan{
-							"BUILD": {StartTime: "wrong"},
+							"BUILD": {
+								StartTime: "wrong",
+								EndTime:   "2020-10-10",
+							},
 						},
 					},
 				}, nil)
@@ -121,7 +124,10 @@ func TestHistoryRun(t *testing.T) {
 					{
 						Tags: []string{"STAGE"},
 						Timing: map[string]cloudbuild.TimeSpan{
-							"BUILD": {EndTime: "wrong"},
+							"BUILD": {
+								StartTime: "2020-10-10",
+								EndTime:   "wrong",
+							},
 						},
 						Substitutions: map[string]string{"_NOMOCK": "true"},
 					},