diff --git a/server/src/sensors.mjs b/server/src/sensors.mjs
index c00fa9c..261c56c 100644
--- a/server/src/sensors.mjs
+++ b/server/src/sensors.mjs
@@ -45,7 +45,7 @@ export async function queryHourly(start, end) {
 	results.forEach(r => {
 		r.values.forEach(([ts, val]) => {
 			if(r.metric.__name__.startsWith('system_')) return;
-			const time = new Date(ts * 1000).toISOString().slice(0, 13) + ':00';
+			const time = new Date(ts * 1000);
 			if (!byTime[time]) byTime[time] = {time};
 			byTime[time][r.metric.__name__.replace('weather_', '')] = parseFloat(val);
 		});
@@ -68,7 +68,7 @@ export async function queryDaily(start, end) {
 	means.forEach(r => {
 		r.values.forEach(([ts, val]) => {
 			if(r.metric.__name__.startsWith('system_')) return;
-			const time = new Date(ts * 1000).toISOString().slice(0, 10);
+			const time = new Date(ts * 1000);
 			if (!byTime[time]) byTime[time] = {time};
 			byTime[time][r.metric.__name__.replace('weather_', '')] = parseFloat(val);
 		});
@@ -77,7 +77,7 @@ export async function queryDaily(start, end) {
 	mins.forEach(r => {
 		if (r.metric.__name__ !== 'temperature') return;
 		r.values.forEach(([ts, val]) => {
-			const time = new Date(ts * 1000).toISOString().slice(0, 10);
+			const time = new Date(ts * 1000);
 			if (!byTime[time]) byTime[time] = {time};
 			byTime[time].env_temp_min_c = parseFloat(val);
 		});
@@ -86,7 +86,7 @@ export async function queryDaily(start, end) {
 	maxs.forEach(r => {
 		if (r.metric.__name__ !== 'temperature') return;
 		r.values.forEach(([ts, val]) => {
-			const time = new Date(ts * 1000).toISOString().slice(0, 10);
+			const time = new Date(ts * 1000);
 			if (!byTime[time]) byTime[time] = {time};
 			byTime[time].env_temp_max_c = parseFloat(val);
 		});