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Update NMEAtimezone.ino #113

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Update NMEAtimezone.ino #113

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28 changes: 25 additions & 3 deletions examples/NMEAtimezone/NMEAtimezone.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,8 @@ static const NeoGPS::clock_t zone_offset =
static const uint8_t springHour = 2;
static const uint8_t fallMonth = 11;
static const uint8_t fallDate = 7; // latest 1st Sunday
static const uint8_t fallHour = 2;
static const uint8_t fallHour = 2;
bool northenHemisphere = 1; //Northen Hemisphere = 1
#define CALCULATE_DST

#elif defined(EU_DST)
Expand All @@ -82,7 +83,19 @@ static const NeoGPS::clock_t zone_offset =
static const uint8_t fallMonth = 10;
static const uint8_t fallDate = 31; // latest last Sunday
static const uint8_t fallHour = 1;
bool northenHemisphere = 1; //Northen Hemisphere = 1
#define CALCULATE_DST

#elif defined(AUS_DST)
static const uint8_t springMonth = 10;
static const uint8_t springDate = 7; // latest last Sunday
static const uint8_t springHour = 2;
static const uint8_t fallMonth = 4; //Autumn
static const uint8_t fallDate = 7; // latest last Sunday
static const uint8_t fallHour = 2;
bool NorthenHemisphere = 0; //Northen Hemisphere = 1
#define CALCULATE_DST

#endif

//--------------------------
Expand Down Expand Up @@ -125,9 +138,18 @@ void adjustTime( NeoGPS::time_t & dt )
seconds += zone_offset;

#ifdef CALCULATE_DST
// Then add an hour if DST is in effect
if ((springForward <= seconds) && (seconds < fallBack))
// Then add an hour if DST is in effect for northen hemisphere
if(northenHemisphere){
if ((springForward <= seconds) && (seconds < fallBack)) {
seconds += NeoGPS::SECONDS_PER_HOUR;
}
}
//separate case for southern hemisphere
else {
if (!((springForward >= seconds) && (seconds > fallBack))) {
seconds += NeoGPS::SECONDS_PER_HOUR;
}
}
#endif

dt = seconds; // convert seconds back to a date/time structure
Expand Down