Differentiate time adjustment (< 3h for example time zone change when crossing a border or because of daylight saving) and time setting (for example when the firmware is booted for the first time and the companion app sends the time)

1 files changed, 12 insertions, 1 deletions

diff --git a/src/components/datetime/DateTimeController.cpp b/src/components/datetime/DateTimeController.cpp
index 01e2859..76407f0 100644
--- a/src/components/datetime/DateTimeController.cpp
+++ b/src/components/datetime/DateTimeController.cpp
@@ -30,6 +30,7 @@ void DateTime::SetTime(
     /* .tm_year = */ year - 1900,
   };
   tm.tm_isdst = -1; // Use DST value from local time zone
+  auto previousDateTime = currentDateTime;
   currentDateTime = std::chrono::time_point_cast<std::chrono::seconds>(std::chrono::system_clock::from_time_t(std::mktime(&tm)));
 
   NRF_LOG_INFO("%d %d %d ", day, month, year);
@@ -40,7 +41,17 @@ void DateTime::SetTime(
   NRF_LOG_INFO("* %d %d %d ", this->hour, this->minute, this->second);
   NRF_LOG_INFO("* %d %d %d ", this->day, ((int)this->month), this->year);
 
-  systemTask->PushMessage(System::Messages::OnNewTime);
+  decltype(currentDateTime - previousDateTime) timeDifference;
+
+  if (currentDateTime > previousDateTime) {
+    timeDifference = currentDateTime - previousDateTime;
+  } else {
+    timeDifference = previousDateTime - currentDateTime;
+  }
+
+  using namespace std::chrono_literals;
+
+  systemTask->PushMessage(timeDifference < 3h ? System::Messages::OnAdjustTime : System::Messages::OnNewTime);
 }
 
 void DateTime::UpdateTime(uint32_t systickCounter) {