diff --git a/CHANGELOG.md b/CHANGELOG.md
index f069a4f..e64088a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,11 +6,9 @@
 - [ ] Set the log level to _error_ in production (see `web/run.py`)
 - [ ] CRON statements to call the cache cleanup and warmup
 - [ ] Cache warmup (generate for today's default interval) `/cache/warmup`
-- [ ] Normalize time interval for time series
 - [ ] Give the future data another color
 - [ ] Sort times series by closeness to the sun
 - [ ] Generate a CDF file (not NetCDF)
-- [ ] Move the link to the source in the footer
 
 An heliospheric propagation 1D MHD model for solar wind prediction at planets, probes and comets.
 
@@ -18,6 +16,7 @@ An heliospheric propagation 1D MHD model for solar wind prediction at planets, p
 
 ## 1.0.0-rc4
 
+- [x] Normalize time interval for time series
 - [x] Make the footer images clickable
 - [x] Highlight the visits counter
 - [x] Use a default interval up to 3 weeks in the future
diff --git a/web/static/js/swapp.js b/web/static/js/swapp.js
index a2c0e61..d79da60 100644
--- a/web/static/js/swapp.js
+++ b/web/static/js/swapp.js
@@ -299,7 +299,10 @@
         if (!(id in data)) {
           console.error("No data for id '" + id + "'.", data);
         }
-        return this$.time_series.push(new TimeSeries(id, title, target, data[id], this$.parameters[id].active, container));
+        return this$.time_series.push(new TimeSeries(id, title, target, data[id], this$.parameters[id].active, container, {
+          'started_at': this$.started_at,
+          'stopped_at': this$.stopped_at
+        }));
       });
       this.time_series.forEach(function(ts){
         ts.options['onMouseOver'] = function(){
@@ -445,6 +448,7 @@
       this.parameter = parameter;
       this.title = title;
       this.target = target;
+      this.data = data;
       this.visible = visible;
       this.container = container;
       this.options = options != null
@@ -455,24 +459,26 @@
       this.onMouseOut = bind$(this, 'onMouseOut', prototype);
       this.onMouseOver = bind$(this, 'onMouseOver', prototype);
       this.onMouseMove = bind$(this, 'onMouseMove', prototype);
-      this.setData(data);
       this.init();
     }
     TimeSeries.prototype.toString = function(){
       return this.title + " of " + this.target.name;
     };
-    TimeSeries.prototype.setData = function(data){
-      this.data = data;
+    TimeSeries.prototype.init = function(){
+      var formatMillisecond, formatSecond, formatMinute, formatHour, formatDay, formatWeek, formatMonth, formatYear, multiFormat, clipId, dx, this$ = this;
+      console.info("Initializing plot of " + this + "…");
       this.xDataExtent = d3.extent(this.data, function(d){
         return d.x;
       });
-      return this.yDataExtent = d3.extent(this.data, function(d){
+      this.yDataExtent = d3.extent(this.data, function(d){
         return d.y;
       });
-    };
-    TimeSeries.prototype.init = function(){
-      var formatMillisecond, formatSecond, formatMinute, formatHour, formatDay, formatWeek, formatMonth, formatYear, multiFormat, clipId, dx, this$ = this;
-      console.info("Initializing plot of " + this + "…");
+      if (this.options['started_at']) {
+        this.xDataExtent[0] = this.options['started_at'];
+      }
+      if (this.options['stopped_at']) {
+        this.xDataExtent[1] = this.options['stopped_at'];
+      }
       this.margin = {
         top: 30,
         right: 20,
diff --git a/web/static/js/swapp.ls b/web/static/js/swapp.ls
index 4c26cd6..2bca06d 100644
--- a/web/static/js/swapp.ls
+++ b/web/static/js/swapp.ls
@@ -251,7 +251,10 @@ https://gitlab.irap.omp.eu/CDPP/SPACEWEATHERONLINE
       id = parameter['id'] ; title = parameter['title']
       if id not of data then console.error("No data for id '#{id}'.", data)
       @time_series.push(new TimeSeries(
-        id, title, target, data[id], @parameters[id].active, container
+        id, title, target, data[id], @parameters[id].active, container, {
+          'started_at': @started_at,
+          'stopped_at': @stopped_at,
+        }
       ))
     )
     @time_series.forEach((ts) ~>  # returning true may be faster
@@ -347,24 +350,24 @@ export class TimeSeries
   # Time in x-axis
   # Data in y-axis
 
-  (@parameter, @title, @target, data, @visible, @container, @options = {}) ->
+  (@parameter, @title, @target, @data, @visible, @container, @options = {}) ->
     # parameter : slug of the parameter to observe, like btan or pdyn
     # title : string, more descriptive, shown on the left of the Y axis
     # target : target object, like described in configuration
     # data : list of {x: <datetime>, y: <float>}
-    @setData(data)
     @init()
 
   toString: -> "#{@title} of #{@target.name}"
 
-  setData: (data) ->
-    @data = data  # and pre-compute extents for performance when zooming
-    @xDataExtent = d3.extent(@data, (d) -> d.x)
-    @yDataExtent = d3.extent(@data, (d) -> d.y)
-
   init: ->
     console.info "Initializing plot of #{@}…"
 
+    # pre-compute extents for performance when zooming
+    @xDataExtent = d3.extent(@data, (d) -> d.x)
+    @yDataExtent = d3.extent(@data, (d) -> d.y)
+    if @options['started_at'] then @xDataExtent[0] = @options['started_at']
+    if @options['stopped_at'] then @xDataExtent[1] = @options['stopped_at']
+
     @margin = {
       top: 30,
       right: 20,
--
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