From 7801e5fd8144e2ebaa874a3ef3e53b12cf880d49 Mon Sep 17 00:00:00 2001
From: Hide_D <hided62@gmail.com>
Date: Wed, 29 Oct 2025 17:44:12 +0000
Subject: [PATCH] =?UTF-8?q?fix:=20varTurn60=EC=97=90=20=EB=B0=80=EB=A6=AC?=
 =?UTF-8?q?=EC=B4=88=20=EC=97=86=EC=9D=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 hwe/ts/util/parseTime.ts |  8 +++++++-
 hwe/ts/varTurn60.ts      | 18 +++++-------------
 2 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/hwe/ts/util/parseTime.ts b/hwe/ts/util/parseTime.ts
index e90f9cee..3352da35 100644
--- a/hwe/ts/util/parseTime.ts
+++ b/hwe/ts/util/parseTime.ts
@@ -1,5 +1,11 @@
 import {parseISO} from 'date-fns';
 
 export function parseTime(dateString: string): Date{
-    return parseISO(dateString);
+    if(dateString === null){
+        console.warn('why null');
+        console.trace();
+        return new Date();
+    }
+    const tmp = parseISO(dateString);
+    return tmp;
 }
\ No newline at end of file
diff --git a/hwe/ts/varTurn60.ts b/hwe/ts/varTurn60.ts
index 251ea2ce..b37099c5 100644
--- a/hwe/ts/varTurn60.ts
+++ b/hwe/ts/varTurn60.ts
@@ -167,14 +167,6 @@ export class VarTurn60 {
         return formatTime(zoned, withFraction);
     }
 
-    private static addSecondsUTC(base: Date, sec: number): Date {
-        return addSeconds(base, sec);
-    }
-
-    private static addDaysUTC(base: Date, days: number): Date {
-        return addDays(base, days);
-    }
-
     // ----- Core Logic -----
 
 
@@ -183,7 +175,7 @@ export class VarTurn60 {
         const baseDayUTC = this.toSeoulMidnightUTC(utc);
         const zoned = toZonedTime(utc, this.TZ);
 
-        const totalSec = zoned.getHours() * 3600 + zoned.getMinutes() * 60 + zoned.getSeconds();
+        const totalSec = zoned.getHours() * 3600 + zoned.getMinutes() * 60 + zoned.getSeconds() + zoned.getMilliseconds() / 1000;
         const min30 = Math.floor(totalSec / 1800);
         if (min30 < 0 || min30 >= 48) throw new RangeError('half-hour index out of range');
         const [turnIdx, minOffset] = this.min30ToTurn[min30];
@@ -202,21 +194,21 @@ export class VarTurn60 {
     cutTurn(withFraction = true): [string, number] {
         const [hour, minOffset, turnTerm] = VarTurn60.turnToHM[this.turnIdx];
         const sec = (hour * 60 + minOffset) * 60;
-        const date = VarTurn60.addSecondsUTC(this.baseDayUTC, sec);
+        const date = addSeconds(this.baseDayUTC, sec);
         return [VarTurn60.format(date, withFraction), turnTerm];
     }
 
     toDate(): Date {
         const [hour, minOffset] = VarTurn60.turnToHM[this.turnIdx];
         const sec = (hour * 60 + minOffset) * 60 + this.secOffset;
-        const date = toZonedTime(VarTurn60.addSecondsUTC(this.baseDayUTC, sec), SEOUL_TZ);
+        const date = toZonedTime(addSeconds(this.baseDayUTC, sec), SEOUL_TZ);
         return date;
     }
 
     toDateStr(withFraction = true): string {
         const [hour, minOffset] = VarTurn60.turnToHM[this.turnIdx];
         const sec = (hour * 60 + minOffset) * 60 + this.secOffset;
-        const date = VarTurn60.addSecondsUTC(this.baseDayUTC, sec);
+        const date = addSeconds(this.baseDayUTC, sec);
         return VarTurn60.format(date, withFraction);
     }
 
@@ -253,7 +245,7 @@ export class VarTurn60 {
         }
 
         const nextBaseDayUTC =
-            dayDiff === 0 ? this.baseDayUTC : VarTurn60.addDaysUTC(this.baseDayUTC, dayDiff);
+            dayDiff === 0 ? this.baseDayUTC : addDays(this.baseDayUTC, dayDiff);
 
         return new VarTurn60(nextBaseDayUTC, nextTurnIdx, nextSecOffset);
     }