--- a/TimeDuration.st	Mon Jul 23 11:17:43 2018 +0200
+++ b/TimeDuration.st	Tue Jul 24 17:30:52 2018 +0200
@@ -746,29 +746,6 @@
     "
 !
 
-+ aTimeDurationOrNumberOfSeconds
-    "return a new timeDuration.
-     The argument may be a timeDuration or
-     a number, which is interpreted as seconds."
-
-    |newMillis newPicos|
-
-    aTimeDurationOrNumberOfSeconds isNumber ifTrue:[
-        newMillis := (self getMilliseconds + (aTimeDurationOrNumberOfSeconds * 1000) asInteger).
-        newPicos := additionalPicoseconds ? 0.
-    ] ifFalse:[
-        newMillis := (self getMilliseconds + aTimeDurationOrNumberOfSeconds getMilliseconds).
-        newPicos := (additionalPicoseconds ? 0) + (aTimeDurationOrNumberOfSeconds additionalPicoseconds).
-    ].
-    ^ self species basicNew
-        setMilliseconds:newMillis additionalPicoseconds:newPicos
-
-    "
-     (TimeDuration fromString:'1m') + (TimeDuration fromString:'10s') 
-     1 minutes + 10 seconds
-    "
-!
-
 - aTimeDurationOrNumberOfSeconds
     "return a new timeDuration.
      The argument may be a timeDuration or
@@ -948,10 +925,10 @@
      this may return a non-integer value."
 
     additionalPicoseconds isNil ifTrue:[
-        ^ (timeEncoding) "/ millis
+        ^ timeEncoding "/ millis
     ].
-    ^ (timeEncoding)                         "/ millis 
-    + (additionalPicoseconds / (1000 * 1000 * 1000))  "/ picos as milliseconds.
+    ^ timeEncoding                         "/ millis 
+      + (additionalPicoseconds / (1000 * 1000 * 1000))  "/ picos as milliseconds.
 
     "
      40 milliseconds asExactMilliseconds
@@ -961,6 +938,7 @@
     "
 
     "Created: / 21-09-2017 / 18:52:26 / cg"
+    "Modified (format): / 24-07-2018 / 16:27:10 / Stefan Vogel"
 !
 
 asExactMinutes
@@ -1423,42 +1401,7 @@
     "
 ! !
 
-!TimeDuration methodsFor:'double dispatching'!
 
-differenceFromTimestamp:aTimestamp
-    "return the timestamp this timeDuration before aTimestamp"
-
-    ^ aTimestamp speciesNew "/ to get the UTC-offset, if any
-        setMilliseconds:(aTimestamp getMilliseconds - self getMilliseconds)
-        additionalPicoseconds:(aTimestamp additionalPicoseconds - self additionalPicoseconds)
-!
-
-productFromNumber:aNumber
-    "sent when an integer does not know how to multiply the receiver.
-     Return a new timeDuration"
-
-    ^ self species basicNew 
-        setMilliseconds:(self getMilliseconds * aNumber)
-        additionalPicoseconds:((additionalPicoseconds?0) * aNumber) 
-
-    "
-     5.1 * (TimeDuration fromString:'10s') 
-     (TimeDuration fromString:'10s') * 5.1
-
-     5.1 * (TimeDuration fromString:'10ns') 
-     (TimeDuration fromString:'10ns') * 5.1
-    "
-
-    "Modified (comment): / 12-06-2017 / 20:50:51 / cg"
-!
-
-sumFromTimestamp:aTimestamp
-    "return the timestamp this timeDuration after aTimestamp"
-
-    ^ aTimestamp speciesNew "/ to get the UTC-offset, if any
-        setMilliseconds:(self getMilliseconds + aTimestamp getMilliseconds)
-        additionalPicoseconds:(self additionalPicoseconds + aTimestamp additionalPicoseconds)
-! !
 
 !TimeDuration methodsFor:'printing'!