diff --git a/app/src/main/java/net/yrom/screenrecorder/MainActivity.java b/app/src/main/java/net/yrom/screenrecorder/MainActivity.java
index e090bfb..2a7848d 100644
--- a/app/src/main/java/net/yrom/screenrecorder/MainActivity.java
+++ b/app/src/main/java/net/yrom/screenrecorder/MainActivity.java
@@ -184,7 +184,7 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
             int bitrate = getSelectedBitrate();
             MediaCodecInfo.CodecProfileLevel profileLevel = getSelectedProfileLevel();
 
-            SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd-kkmmss", Locale.US);
+            SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd-HHmmss", Locale.US);
             final File file = new File(dir, "Screen-" + format.format(new Date())
                     + "-" + width + "x" + height + ".mp4");
             mRecorder = new ScreenRecorder(new VideoEncodeConfig(width, height, bitrate,