--- a/INTRODUCTION	Thu Jan 28 10:08:32 2016 +0100
+++ b/INTRODUCTION	Mon Sep 12 10:19:21 2016 +0200
@@ -14,6 +14,7 @@
 | F2                |  Switch sorting of entries in ProjectList.
 | d                 |  Delete marked entries (in EntryList).
 | e                 |  Edit the text of an entry.
+| a                 |  Adjust the starting datetime of an entry.
 | m                 |  Start the 'wizard' to move selected entries to another
                        project.
 | esc               |  Exit the application. This is only possible if no project

--- a/TODO	Thu Jan 28 10:08:32 2016 +0100
+++ b/TODO	Mon Sep 12 10:19:21 2016 +0200
@@ -1,4 +1,5 @@
-20160128 BER: Should be possible to move the starting time with the GUI.
+20160912 BER: Better code: states.py: classes EditEntryState and 
+  AdjustEntryState have same methods exit() and set_focus(), maybe join them?
 
 20151130 BER: templates/zeiterfassung2: Really sort by date, right now the 
   sorting it sometimes skewed if the week wraps around the end of the month.

--- a/getan/config.py	Thu Jan 28 10:08:32 2016 +0100
+++ b/getan/config.py	Mon Sep 12 10:19:21 2016 +0200
@@ -89,6 +89,7 @@
     KEY_ENTRY_DOWN = "entry_down"
     KEY_ENTRY_MOVE = "entry_move"
     KEY_ENTRY_EDIT = "entry_edit"
+    KEY_ENTRY_ADJUST = "entry_adjust"
     KEY_ADD_TIME = "add_time"
     KEY_SUBTRACT_TIME = "subtract_time"
     KEY_PROJECT_PAUSE = "project_pause"
@@ -107,6 +108,7 @@
         KEY_ENTRY_DELETE: "d",
         KEY_ENTRY_MOVE: "m",
         KEY_ENTRY_EDIT: "e",
+        KEY_ENTRY_ADJUST: "a",
         KEY_ADD_TIME: "+",
         KEY_SUBTRACT_TIME: "-",
         KEY_PROJECT_PAUSE: " ",
@@ -158,6 +160,9 @@
     def get_entry_edit(self):
         return self.get_binding(self.KEY_ENTRY_EDIT)
 
+    def get_entry_adjust(self):
+        return self.get_binding(self.KEY_ENTRY_ADJUST)
+
     def get_entry_up(self):
         return self.get_binding(self.KEY_ENTRY_UP)
 

--- a/getan/states.py	Thu Jan 28 10:08:32 2016 +0100
+++ b/getan/states.py	Mon Sep 12 10:19:21 2016 +0200
@@ -543,6 +543,14 @@
                                                    entry))
             return True
 
+        if keys.get_entry_adjust() in key:
+            entry = self.view.item_in_focus()
+            if entry:
+                self.set_next_state(AdjustEntryState(self.projectlist_state,
+                                                   self.controller, self.view,
+                                                   entry))
+            return True
+
         return False
 
 
@@ -774,6 +782,55 @@
         self.controller.view.set_focus("entries")
         self.view.frame.set_focus("footer")
 
+class AdjustEntryState(HandleUserInputState):
+
+    messages = {
+        'adjust_entry': _('Adjust datetime of entry: '),
+    }
+
+    def __init__(self, state, controller, view, entry):
+        view.set_footer_text(self.msg('adjust_entry'),
+                             'question', True)
+        super(AdjustEntryState, self).__init__(controller, view,
+                                             None, view.footer)
+
+        # we only care up to seconds (which is 19 characters).
+        # for usability the default value has to match the strptime fmt below.
+        self.footer.set_edit_text(str(entry.start)[:19])
+        self.footer.set_edit_pos(len(self.footer.edit_text))
+        self.entry = entry
+        self.state = state
+        logger.debug("AdjustEntryState: Entry %s" % entry)
+
+    def enter(self):
+        entry_datetime = self.footer.get_edit_text() #
+
+        entry = self.entry
+        duration = entry.get_duration()
+
+        try:
+            entry.start = datetime.strptime(entry_datetime, "%Y-%m-%d %H:%M:%S")
+        except:
+            return self
+
+        entry.end = entry.start + duration
+
+        self.controller.update_entry(entry)
+        self.view.node_in_focus().update()
+        return self.exit()
+
+    def exit(self):
+        self.view.set_footer_text("", 'entry_footer', False)
+        self.set_next_state(DefaultEntryListState(self.state, self.controller,
+                                                  self.view))
+        return True
+
+    def set_focus(self):
+        self.controller.view.set_focus("entries")
+        self.view.frame.set_focus("footer")
+
+
+
 
 class ProjectEditKeyState(AlterProjectState):