diff --git a/pages/common/exiftool.md b/pages/common/exiftool.md
index af1d68884..89fb9d06e 100644
--- a/pages/common/exiftool.md
+++ b/pages/common/exiftool.md
@@ -5,3 +5,11 @@
 - Remove all EXIF metadata from the given files
 
 `exiftool -All= {{file}}`
+
+- Increase time photo taken by 1 hour in directory
+
+`exiftool "-AllDates+=0:0:0 1:0:0" {{directory}}`
+
+- Decrease time photo taken by 1 day and 2 hours on jpg's only
+
+`exiftool "-AllDates-=0:0:1 2:0:0" -verbose {{*.jpg}}`