Updated Boost datetime Examples Translated (markdown)

Boost-datetime-Examples-Translated.md

@@ -520,8 +520,7 @@ main()
 ```
 <a name="Seconds_Since_Epoch"></a>
 ### Seconds Since Epoch
-
+```c++
-    #include "date.h"
 #include "tz.h"
 #include <iostream>
 
@@ -534,22 +533,21 @@ main()
     auto nyc_time = make_zoned("America/New_York",
                                local_days(2004_y/oct/4) + 12h + 14min + 32s);
     std::cout << nyc_time << '\n';
-        auto time_t_epoch = sys_days(1970_y/1/1);
+    auto sys_epoch = sys_days{};
-        std::cout << time_t_epoch << '\n';
+    std::cout << sys_epoch << '\n';
 
     // first convert nyc_time to utc via the get_sys_time() 
-        // call and subtract the time_t_epoch.
+    // call and subtract the sys_epoch.
     auto sys_time = nyc_time.get_sys_time();
-        auto diff = nyc_time.get_sys_time() - time_t_epoch;
 
     // Expected 1096906472
-        std::cout << "Seconds diff: " << diff.count() << '\n';
+    std::cout << "Seconds diff: " << sys_time - sys_epoch << '\n';
 
     // Take leap seconds into account
-        auto utc_time = utc_clock::sys_to_utc(sys_time);
+    auto utc_time = to_utc_time(sys_time);
-        auto utc_epoc = utc_clock::sys_to_utc(time_t_epoch);
+    auto utc_epoc = to_utc_time(sys_epoch);
-        diff = utc_time - utc_epoc;
 
     // Expected 1096906494, an extra 22s
-        std::cout << "Seconds diff: " << diff.count() << '\n';
+    std::cout << "Seconds diff: " << utc_time - utc_epoc << '\n';
 }
+```