diff --git a/opm/core/utility/SimulatorTimer.cpp b/opm/core/utility/SimulatorTimer.cpp
index 2e7b64f3..2c6349c0 100644
--- a/opm/core/utility/SimulatorTimer.cpp
+++ b/opm/core/utility/SimulatorTimer.cpp
@@ -69,7 +69,13 @@ namespace Opm
     /// Set current step number.
     void SimulatorTimer::setCurrentStepNum(int step)
     {
+        if (current_step_ < 0 || current_step_ > int(timesteps_.size())) {
+            // Note that we do allow current_step_ == timesteps_.size(),
+            // that is the done() state.
+            THROW("Trying to set invalid step number: " << step);
+        }
         current_step_ = step;
+        current_time_ = std::accumulate(timesteps_.begin(), timesteps_.begin() + step, 0.0);
     }
 
 
@@ -92,6 +98,15 @@ namespace Opm
 	return total_time_;
     }
 
+    /// Set total time.
+    /// This is primarily intended for multi-epoch schedules,
+    /// where a timer for a given epoch does not have
+    /// access to later timesteps.
+    void SimulatorTimer::setTotalTime(double time)
+    {
+	total_time_ = time;
+    }
+
     /// Print a report with current and total time etc.
     void SimulatorTimer::report(std::ostream& os) const
     {
diff --git a/opm/core/utility/SimulatorTimer.hpp b/opm/core/utility/SimulatorTimer.hpp
index 7088909b..d9a35a16 100644
--- a/opm/core/utility/SimulatorTimer.hpp
+++ b/opm/core/utility/SimulatorTimer.hpp
@@ -63,6 +63,12 @@ namespace Opm
 	/// Total time.
 	double totalTime() const;
 
+        /// Set total time.
+        /// This is primarily intended for multi-epoch schedules,
+        /// where a timer for a given epoch does not have
+        /// access to later timesteps.
+	void setTotalTime(double time);
+
 	/// Print a report with current and total time etc.
 	/// Note: if done(), it is an error to call report().
 	void report(std::ostream& os) const;