try the prior tick first

Author: leeoniya

dist/uPlot.cjs.js

@@ -1444,8 +1444,8 @@ function genTimeStuffs(ms) {
 					// adjust for DST misses
 					let hour = date.getHours();
 					if (hour % incrHours > 0) {
-						let hour2 = tzDate(split + h).getHours();
-						split += hour2 % incrHours == 0 ? h : -h;
+						let hour2 = tzDate(split - h).getHours();
+						split += hour2 % incrHours == 0 ? -h : h;
 					}
 
 					if (split > scaleMax)
@@ -1455,7 +1455,6 @@ function genTimeStuffs(ms) {
 						splits.push(split);
 
 					split += foundIncr;
-					// expect = (expect + incrHours) % 24;
 				} while (1);
 			}
 			else {

dist/uPlot.esm.js

@@ -1442,8 +1442,8 @@ function genTimeStuffs(ms) {
 					// adjust for DST misses
 					let hour = date.getHours();
 					if (hour % incrHours > 0) {
-						let hour2 = tzDate(split + h).getHours();
-						split += hour2 % incrHours == 0 ? h : -h;
+						let hour2 = tzDate(split - h).getHours();
+						split += hour2 % incrHours == 0 ? -h : h;
 					}
 
 					if (split > scaleMax)
@@ -1453,7 +1453,6 @@ function genTimeStuffs(ms) {
 						splits.push(split);
 
 					split += foundIncr;
-					// expect = (expect + incrHours) % 24;
 				} while (1);
 			}
 			else {

dist/uPlot.iife.js

@@ -1445,8 +1445,8 @@ var uPlot = (function () {
 						// adjust for DST misses
 						let hour = date.getHours();
 						if (hour % incrHours > 0) {
-							let hour2 = tzDate(split + h).getHours();
-							split += hour2 % incrHours == 0 ? h : -h;
+							let hour2 = tzDate(split - h).getHours();
+							split += hour2 % incrHours == 0 ? -h : h;
 						}
 
 						if (split > scaleMax)
@@ -1456,7 +1456,6 @@ var uPlot = (function () {
 							splits.push(split);
 
 						split += foundIncr;
-						// expect = (expect + incrHours) % 24;
 					} while (1);
 				}
 				else {

dist/uPlot.iife.min.js

@@ -255,8 +255,8 @@ function genTimeStuffs(ms) {
 					// adjust for DST misses
 					let hour = date.getHours();
 					if (hour % incrHours > 0) {
-						let hour2 = tzDate(split + h).getHours();
-						split += hour2 % incrHours == 0 ? h : -h;
+						let hour2 = tzDate(split - h).getHours();
+						split += hour2 % incrHours == 0 ? -h : h;
 					}
 
 					if (split > scaleMax)
@@ -266,7 +266,6 @@ function genTimeStuffs(ms) {
 						splits.push(split);
 
 					split += foundIncr;
-					// expect = (expect + incrHours) % 24;
 				} while (1);
 			}
 			else {