diff --git a/tools/MATLAB_scripts/plot_Ascan.m b/tools/MATLAB_scripts/plot_Ascan.m
index da332fb2..e4540be3 100644
--- a/tools/MATLAB_scripts/plot_Ascan.m
+++ b/tools/MATLAB_scripts/plot_Ascan.m
@@ -20,7 +20,7 @@ if filename ~= 0
     header.nrx = h5readatt(fullfilename, '/', 'nrx');
 
     % Time vector for plotting
-    time = linspace(0, (header.iterations)*(header.dt), header.iterations)';
+    time = linspace(0, (header.iterations - 1) * header.dt, header.iterations)';
 
     % Initialise structure for field arrays
     fields.ex = zeros(header.iterations, header.nrx);
diff --git a/tools/MATLAB_scripts/plot_Bscan.m b/tools/MATLAB_scripts/plot_Bscan.m
index b570d383..b863c875 100644
--- a/tools/MATLAB_scripts/plot_Bscan.m
+++ b/tools/MATLAB_scripts/plot_Bscan.m
@@ -17,8 +17,8 @@ if filename ~= 0
     field = input(prompt,'s');
     fieldpath = strcat('/rxs/rx1/', field);
     field = h5read(filename, fieldpath)';
-    time = linspace(0, iterations*dt, iterations)';
-    traces = 0:size(field,2);
+    time = linspace(0, (iterations - 1) * dt, iterations)';
+    traces = 0:size(field, 2);
 
     fh1=figure('Name', filename);
     clims = [-max(max(abs(field))) max(max(abs(field)))];
@@ -50,4 +50,4 @@ if filename ~= 0
     set(fh1,'PaperPosition', [xMargin yMargin xSize ySize])
     set(fh1,'PaperOrientation', 'portrait')
 
-end
\ No newline at end of file
+end
diff --git a/tools/plot_Ascan.py b/tools/plot_Ascan.py
index badad769..bee92a4d 100644
--- a/tools/plot_Ascan.py
+++ b/tools/plot_Ascan.py
@@ -47,8 +47,9 @@ def mpl_plot(filename, outputs=Rx.defaultoutputs, fft=False):
     nrx = f.attrs['nrx']
     dt = f.attrs['dt']
     iterations = f.attrs['Iterations']
-    time = np.linspace(0, 1, iterations)
-    time *= (iterations * dt)
+    time = np.linspace(0, (iterations - 1) * dt, num=iterations)
+    print(time[0], time[1], time[-1])
+    print(time.size)
 
     # Check there are any receivers
     if nrx == 0:
diff --git a/tools/plot_antenna_params.py b/tools/plot_antenna_params.py
index 3751d09c..3cfc84bb 100644
--- a/tools/plot_antenna_params.py
+++ b/tools/plot_antenna_params.py
@@ -49,8 +49,7 @@ def calculate_antenna_params(filename, tltxnumber=1, tlrxnumber=None, rxnumber=N
     iterations = f.attrs['Iterations']
 
     # Calculate time array and frequency bin spacing
-    time = np.linspace(0, 1, iterations)
-    time *= (iterations * dt)
+    time = np.linspace(0, (iterations - 1) * dt, num=iterations)
     df = 1 / np.amax(time)
 
     print('Time window: {:g} s ({} iterations)'.format(np.amax(time), iterations))
diff --git a/tools/plot_source_wave.py b/tools/plot_source_wave.py
index ad7eb0b9..918dc897 100644
--- a/tools/plot_source_wave.py
+++ b/tools/plot_source_wave.py
@@ -73,8 +73,7 @@ def mpl_plot(w, timewindow, dt, iterations, fft=False):
         plt (object): matplotlib plot object.
     """
 
-    time = np.linspace(0, 1, iterations)
-    time *= (iterations * dt)
+    time = np.linspace(0, (iterations - 1) * dt, num=iterations)
     waveform = np.zeros(len(time))
     timeiter = np.nditer(time, flags=['c_index'])