diff --git a/nw/core/project.py b/nw/core/project.py
index d7ab3c2d..132066b3 100644
--- a/nw/core/project.py
+++ b/nw/core/project.py
@@ -69,6 +69,7 @@ class NWProject():
         self.lockedBy    = None  # Data on which computer has the project open
         self.saveCount   = 0     # Meta data: number of saves
         self.autoCount   = 0     # Meta data: number of automatic saves
+        self.editTime    = 0     # The accumulated edit time read from the project file
 
         # Class Settings
         self.projPath    = None # The full path to where the currently open project is saved
@@ -206,7 +207,7 @@ class NWProject():
         self.autoReplace = {}
         self.titleFormat = {
             "title"        : r"%title%",
-            "chapter"      : r"Chapter %num%\\%title%",
+            "chapter"      : r"Chapter %ch%: %title%",
             "unnumbered"   : r"%title%",
             "scene"        : r"* * *",
             "section"      : r"",
@@ -330,6 +331,8 @@ class NWProject():
             self.saveCount = checkInt(xRoot.attrib["saveCount"], 0, False)
         if "autoCount" in xRoot.attrib:
             self.autoCount = checkInt(xRoot.attrib["autoCount"], 0, False)
+        if "editTime" in xRoot.attrib:
+            self.editTime = checkInt(xRoot.attrib["editTime"], 0, False)
 
         logger.verbose("XML root is %s" % nwxRoot)
         logger.verbose("File version is %s" % fileVersion)
@@ -486,6 +489,7 @@ class NWProject():
             "saveCount"   : str(self.saveCount),
             "autoCount"   : str(self.autoCount),
             "timeStamp"   : formatTimeStamp(saveTime),
+            "editTime"    : str(int(self.editTime + saveTime - self.projOpened)),
         })
 
         # Save Project Meta
@@ -535,7 +539,7 @@ class NWProject():
                     xml_declaration = True
                 ))
         except Exception as e:
-            self.makeAlert(["Failed to save project.",str(e)], nwAlert.ERROR)
+            self.makeAlert(["Failed to save project.", str(e)], nwAlert.ERROR)
             return False
 
         # If we're here, the file was successfully saved,
diff --git a/sample/nwProject.nwx b/sample/nwProject.nwx
index a0d7f3ce..b70706eb 100644
--- a/sample/nwProject.nwx
+++ b/sample/nwProject.nwx
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<novelWriterXML appVersion="0.7.0rc1" hexVersion="0x000700c1" fileVersion="1.1" saveCount="197" autoCount="29" timeStamp="2020-05-29 23:27:14">
+<novelWriterXML appVersion="0.7.0rc1" hexVersion="0x000700c1" fileVersion="1.1" saveCount="200" autoCount="29" timeStamp="2020-05-29 23:45:11" editTime="30">
   <project>
     <name>Sample Project</name>
     <title>Sample Project</title>
diff --git a/tests/reference/gui/0_nwProject.nwx b/tests/reference/gui/0_nwProject.nwx
index 6d2bf739..dcf46837 100644
--- a/tests/reference/gui/0_nwProject.nwx
+++ b/tests/reference/gui/0_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/gui/1_nwProject.nwx b/tests/reference/gui/1_nwProject.nwx
index 112a4be0..a09a089f 100644
--- a/tests/reference/gui/1_nwProject.nwx
+++ b/tests/reference/gui/1_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/gui/2_nwProject.nwx b/tests/reference/gui/2_nwProject.nwx
index c4668fe4..11fc5dbe 100644
--- a/tests/reference/gui/2_nwProject.nwx
+++ b/tests/reference/gui/2_nwProject.nwx
@@ -18,7 +18,7 @@
     </autoReplace>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/gui/3_nwProject.nwx b/tests/reference/gui/3_nwProject.nwx
index 35e1b8df..e7f9e514 100644
--- a/tests/reference/gui/3_nwProject.nwx
+++ b/tests/reference/gui/3_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/proj/1_nwProject.nwx b/tests/reference/proj/1_nwProject.nwx
index 53499ddc..5ba28cae 100644
--- a/tests/reference/proj/1_nwProject.nwx
+++ b/tests/reference/proj/1_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/proj/2_nwProject.nwx b/tests/reference/proj/2_nwProject.nwx
index 22a9e0fb..fe5bf878 100644
--- a/tests/reference/proj/2_nwProject.nwx
+++ b/tests/reference/proj/2_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>
diff --git a/tests/reference/proj/3_nwProject.nwx b/tests/reference/proj/3_nwProject.nwx
index ee8f6e1a..2e3cb6c0 100644
--- a/tests/reference/proj/3_nwProject.nwx
+++ b/tests/reference/proj/3_nwProject.nwx
@@ -14,7 +14,7 @@
     <autoReplace/>
     <titleFormat>
       <title>%title%</title>
-      <chapter>Chapter %num%\\%title%</chapter>
+      <chapter>Chapter %ch%: %title%</chapter>
       <unnumbered>%title%</unnumbered>
       <scene>* * *</scene>
       <section></section>