diff --git a/Documentation/ProjectFile/prj/time_loop/processes/process/time_stepping/FixedTimeStepping/t_n_steps.md b/Documentation/ProjectFile/prj/time_loop/processes/process/time_stepping/FixedTimeStepping/t_n_steps.md
new file mode 100644
index 0000000000000000000000000000000000000000..41b490517f72115268106c19a58e4da028ae1dc9
--- /dev/null
+++ b/Documentation/ProjectFile/prj/time_loop/processes/process/time_stepping/FixedTimeStepping/t_n_steps.md
@@ -0,0 +1,4 @@
+An optional parameter specifying the number of time steps.
+All time steps will be of the same size \f$(t_{\rm end} - t_{\rm initial}) \over n\f$.
+
+For more complex setups see the `timesteps` parameter documentation.
diff --git a/NumLib/TimeStepping/Algorithms/CreateFixedTimeStepping.cpp b/NumLib/TimeStepping/Algorithms/CreateFixedTimeStepping.cpp
index 2b9d74cd15c19319b01180e5c52922829b512176..73d5203b0176cc747ae3be0530d28f11ebf944a4 100644
--- a/NumLib/TimeStepping/Algorithms/CreateFixedTimeStepping.cpp
+++ b/NumLib/TimeStepping/Algorithms/CreateFixedTimeStepping.cpp
@@ -28,6 +28,37 @@ FixedTimeSteppingParameters parseFixedTimeStepping(
auto const t_initial = config.getConfigParameter<double>("t_initial");
//! \ogs_file_param{prj__time_loop__processes__process__time_stepping__FixedTimeStepping__t_end}
auto const t_end = config.getConfigParameter<double>("t_end");
+
+ //! \ogs_file_param{prj__time_loop__processes__process__time_stepping__FixedTimeStepping__n_steps}
+ auto const n_steps = config.getConfigParameterOptional<int>("n_steps");
+ if (n_steps.has_value())
+ {
+ if (t_end <= t_initial)
+ {
+ OGS_FATAL(
+ "Creating linearly spaced time steps vector using "
+ "FixedTimeStepping algorithm failed! "
+ "User provided start value (t_initial) "
+ "{} is not smaller then end value (t_end) {}.",
+ t_initial, t_end);
+ }
+
+ if (*n_steps <= 0)
+ {
+ OGS_FATAL(
+ "Requested number of time steps in time steps vector "
+ "(n_steps) must be greater then 0. "
+ "{} time steps were requested",
+ *n_steps);
+ }
+ // Create the RepeatDtPair
+ std::size_t const t_step = static_cast<std::size_t>(
+ (t_end - t_initial) / static_cast<double>(*n_steps));
+ std::vector const repeat_pairs = {
+ RepeatDtPair{static_cast<std::size_t>(*n_steps), t_step}};
+ return {t_initial, t_end, repeat_pairs};
+ }
+
//! \ogs_file_param{prj__time_loop__processes__process__time_stepping__FixedTimeStepping__timesteps}
auto const delta_ts_config = config.getConfigSubtree("timesteps");
diff --git a/Tests/Data/Parabolic/T/1D_dirichlet/line_60_heat.prj b/Tests/Data/Parabolic/T/1D_dirichlet/line_60_heat.prj
index 006833f04df0b00b9f4249db63e0c008b4dde9c9..4ad5c3a2aa210b5a6096856a3a31659815012f49 100644
--- a/Tests/Data/Parabolic/T/1D_dirichlet/line_60_heat.prj
+++ b/Tests/Data/Parabolic/T/1D_dirichlet/line_60_heat.prj
@@ -53,12 +53,7 @@
<type>FixedTimeStepping</type>
<t_initial> 0.0 </t_initial>
<t_end> 39062500 </t_end>
- <timesteps>
- <pair>
- <repeat>500</repeat>
- <delta_t>78125</delta_t>
- </pair>
- </timesteps>
+ <n_steps>500</n_steps>
</time_stepping>
</process>
</processes>
diff --git a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt/line_60_heat.xml b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt/line_60_heat.xml
index bab27be155b5c592b1e51e21af2aecefad357c4c..59d0b8a106134db59c21401184c01ebc88c258a2 100644
--- a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt/line_60_heat.xml
+++ b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt/line_60_heat.xml
@@ -1,6 +1,6 @@
<?xml version='1.0' encoding='ISO-8859-1'?>
<OpenGeoSysProjectDiff base_file="../line_60_heat.prj">
- <remove sel="/*/time_loop/processes/process/time_stepping/timesteps"/>
+ <remove sel="/*/time_loop/processes/process/time_stepping/n_steps"/>
<add sel="/*/time_loop/processes/process/time_stepping">
<timesteps>
<pair>
diff --git a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear/line_60_heat.xml b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear/line_60_heat.xml
index 4f356a5f27828ced3a529c7649145c9d08e9e91c..9c72843f1467e897e12130f6178269095c12a5b7 100644
--- a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear/line_60_heat.xml
+++ b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear/line_60_heat.xml
@@ -4,7 +4,7 @@
<linear>true</linear>
</add>
- <remove sel="/*/time_loop/processes/process/time_stepping/timesteps"/>
+ <remove sel="/*/time_loop/processes/process/time_stepping/n_steps"/>
<add sel="/*/time_loop/processes/process/time_stepping">
<timesteps>
<pair>
diff --git a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear_compute_only_on_dt_change/line_60_heat.xml b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear_compute_only_on_dt_change/line_60_heat.xml
index e1ec26c894bdd60e53c14687fd77ad7a83129596..5ee7efb034ee1dfddd4390dff070ae0bd25c9ad4 100644
--- a/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear_compute_only_on_dt_change/line_60_heat.xml
+++ b/Tests/Data/Parabolic/T/1D_dirichlet/varying_dt_linear_compute_only_on_dt_change/line_60_heat.xml
@@ -5,7 +5,7 @@
<linear_solver_compute_only_upon_timestep_change>true</linear_solver_compute_only_upon_timestep_change>
</add>
- <remove sel="/*/time_loop/processes/process/time_stepping/timesteps"/>
+ <remove sel="/*/time_loop/processes/process/time_stepping/n_steps"/>
<add sel="/*/time_loop/processes/process/time_stepping">
<timesteps>
<pair>
diff --git a/web/content/docs/userguide/blocks/time_loop.md b/web/content/docs/userguide/blocks/time_loop.md
index 6a73149f2a130a536cce4aeca3b9604626eced6e..289110e23be60b0ee61e9b51436abe3dfca89c8c 100644
--- a/web/content/docs/userguide/blocks/time_loop.md
+++ b/web/content/docs/userguide/blocks/time_loop.md
@@ -111,6 +111,20 @@ unit:
</time_stepping>
```
+Fixed time stepping can be also used to create linearly spaced steps between `t_initial` and `t_end`.
+The number of steps is defined by `n_steps`.
+
+```xml
+<time_stepping>
+ <type>FixedTimeStepping</type>
+ <t_initial>0</t_initial>
+ <t_end>10</t_end>
+ <n_steps>10</n_steps>
+</time_stepping>
+```
+
+will result in 11 time steps at: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
+
As fixed time stepping is one of the simplest available, it is a good starting point.
#### Iteration number based time stepping