Add date code

include/TessesFramework/Date/Date.hpp

@@ -0,0 +1,66 @@
+#pragma once
+#include <string>
+#include <chrono>
+#include <cstdint>
+
+namespace Tesses::Framework::Date
+{
+    int GetTimeZone();
+    bool TimeZoneSupportDST();
+    
+    class DateTime {
+        int year=1970;
+        int month=1;
+        int day=1;
+        int hour=0;
+        int minute=0;
+        int second=0;
+        bool isLocal=false;
+        int64_t ToEpochNoConvert();
+        void FromEpochNoConvert(int64_t gmt);
+        public:
+        DateTime();
+        DateTime(int year, int month, int day, int hour, int minute, int seconds, bool isLocal=true);
+        DateTime(int64_t epoch);
+        int Year();
+        int Month();
+        int Day();
+        int Hour();
+        int Minute();
+        int Second();
+        int DayOfWeek();
+        bool IsLocal();
+        int64_t ToEpoch();
+        DateTime ToLocal();
+        DateTime ToUTC();
+        void SetToLocal();
+        void SetToUTC();
+        void SetYear(int y);
+        void SetMonth(int m);
+        void SetDay(int d);
+        void SetHour(int h);
+        void SetMinute(int m);
+        void SetSecond(int s);
+        void SetLocal(bool local);
+        void Set(int64_t epoch);
+        void Set(int year, int month, int day, int hour, int minute, int seconds, bool isLocal=true);
+
+        
+
+        void SetToNow();
+        void SetToNowUTC();
+        static DateTime Now();
+        static DateTime NowUTC();
+
+        std::string ToString();
+        std::string ToString(std::string fmt);
+
+
+        std::string ToHttpDate();
+        static bool TryParseHttpDate(std::string txt, DateTime& dt);
+
+
+        
+    };
+
+};