Added daytime property

server/src/forecast.mjs

@@ -153,6 +153,7 @@ export async function get24HourForecast(currentSensors) {
 
 		const snapshot = {
 			time: time.toISOString().slice(0, 16), // "YYYY-MM-DDTHH:MM"
+			daytime: false,
 			temperature,
 			humidity,
 			humidity_abs:          absoluteHumidity(temperature, humidity),
@@ -173,6 +174,13 @@ export async function get24HourForecast(currentSensors) {
 
 	// Second pass — apply solar heating now that we have sun_elevation per slot
 	for (const slot of enriched) {
+		if (slot.sunrise && slot.sunset) {
+			const t = new Date(slot.time).getTime();
+			slot.daytime = t >= new Date(slot.sunrise).getTime() && t < new Date(slot.sunset).getTime();
+		} else {
+			slot.daytime = (slot.sun_elevation ?? 0) > 0;
+		}
+
 		const solar  = solarTempDelta(slot.sun_elevation ?? 0, slot.clouds);
 		const cool   = slot.daytime ? 0 : nocturnalCooling(slot.clouds);
 		slot.temperature          = Math.round((slot.temperature + solar - cool) * 10) / 10;
@@ -198,7 +206,8 @@ function summarise(slots) {
 	// Most frequent label/code by occurrence
 	const labelCount = {}
 	for (const s of slots) labelCount[s.label] = (labelCount[s.label] || 0) + 1
-	const label = Object.entries(labelCount).sort((a, b) => b[1] - a[1])[0][0]
+	const label = Object.entries(labelCount).filter(row => row.daytime)
+		.sort((a, b) => b[1] - a[1])[0][0]
 	const dominant = slots.find(s => s.label === label)
 
 	return {

server/src/openmeteo.mjs

@@ -136,10 +136,11 @@ export async function dailyWeather(lat, lon, start, end) {
     const clouds   = null // not available in daily
 
     return {
-      time,
       label:                  WMO[code] || 'Unknown',
       icon,
       code,
+      time,
+      daytime: !!data.daily.sunrise[i],
       temperature:            temp,
       temperature_max:        temp,
       temperature_min:        data.daily.temperature_2m_min[i],
@@ -183,7 +184,20 @@ export async function hourlyWeather(lat, lon, start, end) {
   const data = await cachedFetch(`hourly_${lat}_${lon}_${startStr}_${endStr}`, url)
   if (!data?.hourly?.time) return []
 
+  const sunMap = {}
+  if (data.daily?.time) {
+    data.daily.time.forEach((date, i) => {
+      sunMap[date] = { sunrise: data.daily.sunrise[i], sunset: data.daily.sunset[i] }
+    })
+  }
+
   return Promise.all(data.hourly.time.map(async (time, i) => {
+    const date = time.slice(0, 10)
+    const sun  = sunMap[date] ?? {}
+    const t    = new Date(time).getTime()
+    const daytime = sun.sunrise && sun.sunset
+        ? t >= new Date(sun.sunrise).getTime() && t < new Date(sun.sunset).getTime()
+        : false
     const code     = data.hourly.weathercode[i]
     const icon     = await ensureIcon(code).catch(() => null)
     const temp     = data.hourly.temperature_2m[i]
@@ -193,6 +207,7 @@ export async function hourlyWeather(lat, lon, start, end) {
 
     return {
       time:                   time.slice(0, 16),
+      daytime,
       label:                  WMO[code] || 'Unknown',
       icon,
       code,

server/src/server.mjs

@@ -47,6 +47,7 @@ app.get('/api/current', async (req, res) => {
 
 	// Merge forecast summary fields — sensor readings take priority
 	const merged = {
+		time: new Date(),
 		...(summary ? {
 			precipitation_chance:   summary.precipitation_chance,
 			temperature_max: summary.temperature_max,