Core/Calendar: Implement different timezone support for ingame calendar

Closes #8390
Closes #29427

(cherry picked from commit b888b1b09f71a8b8b4a9d45c804a1f164fb65ac3)

1 files changed, 18 insertions, 0 deletions

diff --git a/src/server/game/Time/GameTime.cpp b/src/server/game/Time/GameTime.cpp
index 7742cabef20..733f381f796 100644
--- a/src/server/game/Time/GameTime.cpp
+++ b/src/server/game/Time/GameTime.cpp
@@ -17,6 +17,9 @@
 
 #include "GameTime.h"
 #include "Timer.h"
+#include "Timezone.h"
+#include "Util.h"
+#include "WowTime.h"
 
 namespace GameTime
 {
@@ -28,6 +31,9 @@ namespace GameTime
     SystemTimePoint GameTimeSystemPoint = SystemTimePoint ::min();
     TimePoint GameTimeSteadyPoint = TimePoint::min();
 
+    WowTime UtcWow;
+    WowTime Wow;
+
     time_t GetStartTime()
     {
         return StartTime;
@@ -58,11 +64,23 @@ namespace GameTime
         return uint32(GameTime - StartTime);
     }
 
+    WowTime const* GetUtcWowTime()
+    {
+        return &UtcWow;
+    }
+
+    WowTime const* GetWowTime()
+    {
+        return &Wow;
+    }
+
     void UpdateGameTimers()
     {
         GameTime = time(nullptr);
         GameMSTime = getMSTime();
         GameTimeSystemPoint = std::chrono::system_clock::now();
         GameTimeSteadyPoint = std::chrono::steady_clock::now();
+        UtcWow.SetUtcTimeFromUnixTime(GameTime);
+        Wow = UtcWow + Trinity::Timezone::GetSystemZoneOffsetAt(GameTimeSystemPoint);
     }
 }