diff --git a/src/util/time/CGameTime.cpp b/src/util/time/CGameTime.cpp
index 94810ab..6cf165c 100644
--- a/src/util/time/CGameTime.cpp
+++ b/src/util/time/CGameTime.cpp
@@ -1,6 +1,47 @@
 #include "util/time/CGameTime.hpp"
 #include "common/Time.hpp"
 
+void CGameTime::GameTimeSetTime(const WowTime& time, bool shouldTick) {
+    WowTime biasTime = time;
+
+    if (this->m_timeBias) {
+        auto minutes = biasTime.GetHourAndMinutes() + this->m_timeBias;
+
+        if (minutes < 0) {
+            minutes += 1440;
+        } else {
+            minutes %= 1440;
+        }
+
+        biasTime.SetHourAndMinutes(minutes);
+    }
+
+    if (this->m_dateBias) {
+        biasTime.AddDays(this->m_dateBias, false);
+    }
+
+    static_cast<WowTime&>(*this) = biasTime;
+
+    if (shouldTick) {
+        // Rewind time by exactly one minute
+        if (this->m_minute != 0) {
+            this->m_minute--;
+        } else {
+            this->m_minute = 59;
+
+            if (this->m_hour != 0) {
+                this->m_hour--;
+            } else {
+                this->m_hour = 23;
+                this->AddDays(-1, false);
+            }
+        }
+
+        // Tick ahead exactly one minute (ensures callbacks fire and various counters update)
+        this->TickMinute();
+    }
+}
+
 void CGameTime::PerformCallbacks(int32_t minutes) {
     // TODO
 }
diff --git a/src/util/time/CGameTime.hpp b/src/util/time/CGameTime.hpp
index d8f53c0..445dbf9 100644
--- a/src/util/time/CGameTime.hpp
+++ b/src/util/time/CGameTime.hpp
@@ -6,8 +6,7 @@
 class CGameTime : public WowTime {
     public:
         // Public member functions
-        void PerformCallbacks(int32_t minutes);
-        void TickMinute();
+        void GameTimeSetTime(const WowTime& time, bool shouldTick);
 
     private:
         // Private member variables
@@ -24,6 +23,10 @@ class CGameTime : public WowTime {
         float float48 = 0.0f;
         float float4C = 0.0f;
         // TODO m_callbackLists
+
+        // Private member functions
+        void PerformCallbacks(int32_t minutes);
+        void TickMinute();
 };
 
 #endif
diff --git a/test/util/time/CGameTime.cpp b/test/util/time/CGameTime.cpp
index 825da49..88dfd6d 100644
--- a/test/util/time/CGameTime.cpp
+++ b/test/util/time/CGameTime.cpp
@@ -16,13 +16,24 @@ TEST_CASE("CGameTime::CGameTime", "[util]") {
     }
 }
 
-TEST_CASE("CGameTime::TickMinute", "[util]") {
-    SECTION("ticks minute correctly") {
-        CGameTime time;
-        time.SetHourAndMinutes(0, 0);
-        time.TickMinute();
+TEST_CASE("CGameTime::GameTimeSetTime", "[util]") {
+    SECTION("sets game time correctly") {
+        WowTime time;
+        time.m_minute = 18;
+        time.m_hour = 11;
+        time.m_weekday = 3;
+        time.m_monthday = 27;
+        time.m_month = 0;
+        time.m_year = 26;
 
-        CHECK(time.m_hour == 0);
-        CHECK(time.m_minute == 1);
+        CGameTime gameTime;
+        gameTime.GameTimeSetTime(time, true);
+
+        CHECK(gameTime.m_minute == 18);
+        CHECK(gameTime.m_hour == 11);
+        CHECK(gameTime.m_weekday == 3);
+        CHECK(gameTime.m_monthday == 27);
+        CHECK(gameTime.m_month == 0);
+        CHECK(gameTime.m_year == 26);
     }
 }