diff --git a/plugins/inputs/filecount/README.md b/plugins/inputs/filecount/README.md
index cf33475c0..32c2d89ec 100644
--- a/plugins/inputs/filecount/README.md
+++ b/plugins/inputs/filecount/README.md
@@ -56,10 +56,12 @@ See the [CONFIGURATION.md][CONFIGURATION.md] for more details.
   - fields:
     - count (integer)
     - size_bytes (integer)
+    - oldest_file_timestamp (int, unix time nanoseconds)
+    - newest_file_timestamp (int, unix time nanoseconds)
 
 ## Example Output
 
 ```text
-filecount,directory=/var/cache/apt count=7i,size_bytes=7438336i 1530034445000000000
-filecount,directory=/tmp count=17i,size_bytes=28934786i 1530034445000000000
+filecount,directory=/var/cache/apt count=7i,size_bytes=7438336i,oldest_file_timestamp=1507152973123456789i,newest_file_timestamp=1507152973123456789i 1530034445000000000
+filecount,directory=/tmp count=17i,size_bytes=28934786i,oldest_file_timestamp=1507152973123456789i,newest_file_timestamp=1507152973123456789i 1530034445000000000
 ```
diff --git a/plugins/inputs/filecount/filecount.go b/plugins/inputs/filecount/filecount.go
index de19a487c..02b22f5af 100644
--- a/plugins/inputs/filecount/filecount.go
+++ b/plugins/inputs/filecount/filecount.go
@@ -122,6 +122,8 @@ func (fc *FileCount) initFileFilters() {
 func (fc *FileCount) count(acc telegraf.Accumulator, basedir string, glob globpath.GlobPath) {
 	childCount := make(map[string]int64)
 	childSize := make(map[string]int64)
+	oldestFileTimestamp := make(map[string]int64)
+	newestFileTimestamp := make(map[string]int64)
 
 	walkFn := func(path string, de *godirwalk.Dirent) error {
 		rel, err := filepath.Rel(basedir, path)
@@ -144,6 +146,12 @@ func (fc *FileCount) count(acc telegraf.Accumulator, basedir string, glob globpa
 			parent := filepath.Dir(path)
 			childCount[parent]++
 			childSize[parent] += file.Size()
+			if oldestFileTimestamp[parent] == 0 || oldestFileTimestamp[parent] > file.ModTime().UnixNano() {
+				oldestFileTimestamp[parent] = file.ModTime().UnixNano()
+			}
+			if newestFileTimestamp[parent] == 0 || newestFileTimestamp[parent] < file.ModTime().UnixNano() {
+				newestFileTimestamp[parent] = file.ModTime().UnixNano()
+			}
 		}
 		if file.IsDir() && !fc.Recursive && !glob.HasSuperMeta {
 			return filepath.SkipDir
@@ -157,6 +165,8 @@ func (fc *FileCount) count(acc telegraf.Accumulator, basedir string, glob globpa
 				"count":      childCount[path],
 				"size_bytes": childSize[path],
 			}
+			gauge["oldest_file_timestamp"] = oldestFileTimestamp[path]
+			gauge["newest_file_timestamp"] = newestFileTimestamp[path]
 			acc.AddGauge("filecount", gauge,
 				map[string]string{
 					"directory": path,
@@ -166,9 +176,17 @@ func (fc *FileCount) count(acc telegraf.Accumulator, basedir string, glob globpa
 		if fc.Recursive {
 			childCount[parent] += childCount[path]
 			childSize[parent] += childSize[path]
+			if oldestFileTimestamp[parent] == 0 || oldestFileTimestamp[parent] > oldestFileTimestamp[path] {
+				oldestFileTimestamp[parent] = oldestFileTimestamp[path]
+			}
+			if newestFileTimestamp[parent] == 0 || newestFileTimestamp[parent] < newestFileTimestamp[path] {
+				newestFileTimestamp[parent] = newestFileTimestamp[path]
+			}
 		}
 		delete(childCount, path)
 		delete(childSize, path)
+		delete(oldestFileTimestamp, path)
+		delete(newestFileTimestamp, path)
 		return nil
 	}
 
diff --git a/plugins/inputs/filecount/filecount_test.go b/plugins/inputs/filecount/filecount_test.go
index 1da8c0989..02739bb9b 100644
--- a/plugins/inputs/filecount/filecount_test.go
+++ b/plugins/inputs/filecount/filecount_test.go
@@ -38,6 +38,8 @@ func TestNoFiltersOnChildDir(t *testing.T) {
 	require.NoError(t, acc.GatherError(fc.Gather))
 	require.True(t, acc.HasPoint("filecount", tags, "count", int64(len(matches))))
 	require.True(t, acc.HasPoint("filecount", tags, "size_bytes", int64(600)))
+	require.True(t, acc.HasInt64Field("filecount", "oldest_file_timestamp"))
+	require.True(t, acc.HasInt64Field("filecount", "newest_file_timestamp"))
 }
 
 func TestNoRecursiveButSuperMeta(t *testing.T) {
@@ -52,6 +54,8 @@ func TestNoRecursiveButSuperMeta(t *testing.T) {
 
 	require.True(t, acc.HasPoint("filecount", tags, "count", int64(len(matches))))
 	require.True(t, acc.HasPoint("filecount", tags, "size_bytes", int64(200)))
+	require.True(t, acc.HasInt64Field("filecount", "oldest_file_timestamp"))
+	require.True(t, acc.HasInt64Field("filecount", "newest_file_timestamp"))
 }
 
 func TestNameFilter(t *testing.T) {
@@ -157,8 +161,10 @@ func TestDirectoryWithTrailingSlash(t *testing.T) {
 				"directory": getTestdataDir(),
 			},
 			map[string]interface{}{
-				"count":      9,
-				"size_bytes": 5096,
+				"count":                 9,
+				"size_bytes":            5096,
+				"newest_file_timestamp": time.Unix(1450117505, 0).UnixNano(),
+				"oldest_file_timestamp": time.Unix(1292351105, 0).UnixNano(),
 			},
 			time.Unix(0, 0),
 			telegraf.Gauge,