Update time.cpp (#5835)

* Update time.cpp

Migrate configTime() to use sntp_set_timezone_in_seconds() to correctly allow timezone spec in seconds without rounding

* Add sntp-lwip2.h for timezone function

Author: devyte

cores/esp8266/sntp-lwip2.cpp

@@ -433,9 +433,8 @@ bool sntp_set_timezone_in_seconds(sint32 timezone)
     if(timezone >= (-11 * (60 * 60)) || timezone <= (13 * (60 * 60))) {
         time_zone = timezone;
         return true;
-    } else {
-        return false;
     }
+    return false;
 }
 
 /* Sets the timezone in hours. Internally, the timezone is converted to seconds. */

cores/esp8266/sntp-lwip2.h

@@ -0,0 +1,10 @@
+#ifndef __sntp_lwip2_h__
+#define __sntp_lwip2_h__
+
+extern "C" {
+
+bool sntp_set_timezone_in_seconds(sint32 timezone);
+
+}
+
+#endif

cores/esp8266/time.cpp

@@ -22,6 +22,8 @@
 #include "sntp.h"
 #include "coredecls.h"
 
+#include "sntp-lwip2.h"
+
 extern "C" {
 
 #ifndef _TIMEVAL_DEFINED
@@ -58,15 +60,16 @@ static void setServer(int id, const char* name_or_ip)
     }
 }
 
-void configTime(int timezone, int daylightOffset_sec, const char* server1, const char* server2, const char* server3)
+
+void configTime(int timezone_sec, int daylightOffset_sec, const char* server1, const char* server2, const char* server3)
 {
     sntp_stop();
 
     setServer(0, server1);
     setServer(1, server2);
     setServer(2, server3);
 
-    sntp_set_timezone(timezone/3600);
+    sntp_set_timezone_in_seconds(timezone_sec);
     sntp_set_daylight(daylightOffset_sec);
     sntp_init();
 }