From 66f60bc9ae0072ed230ba5477393f82eb95956b4 Mon Sep 17 00:00:00 2001
From: sstent <stuart.stent@gmail.com>
Date: Tue, 17 Feb 2026 08:26:20 -0800
Subject: [PATCH] Bump version to 0.2.14 and simplify date processing to native
 browser behavior

---
 PLUG.md      |  2 +-
 icalendar.ts | 45 +++++++++++----------------------------------
 2 files changed, 12 insertions(+), 35 deletions(-)

diff --git a/PLUG.md b/PLUG.md
index 8e47d15..2586fee 100644
--- a/PLUG.md
+++ b/PLUG.md
@@ -1,6 +1,6 @@
 ---
 name: Library/sstent/icalendar/PLUG
-version: 0.2.13
+version: 0.2.14
 tags: meta/library
 files:
 - icalendar.plug.js
diff --git a/icalendar.ts b/icalendar.ts
index 51fad90..1315410 100644
--- a/icalendar.ts
+++ b/icalendar.ts
@@ -1,24 +1,10 @@
 import { clientStore, config, datastore, editor, index } from "@silverbulletmd/silverbullet/syscalls";
 import { convertIcsCalendar, type IcsCalendar, type IcsEvent, type IcsDateObjects } from "ts-ics";
 
-const VERSION = "0.2.13";
+const VERSION = "0.2.14";
 const CACHE_KEY = "icalendar:lastSync";
 const DEFAULT_CACHE_DURATION_SECONDS = 21600; // 6 hours
 
-// Mapping of common Windows/Outlook timezones to their standard offsets
-const TIMEZONE_OFFSETS: Record<string, number> = {
-  "GMT Standard Time": 0,
-  "W. Europe Standard Time": 1,
-  "Central Europe Standard Time": 1,
-  "Romance Standard Time": 1,
-  "Central European Standard Time": 1,
-  "Eastern Standard Time": -5,
-  "Central Standard Time": -6,
-  "Mountain Standard Time": -7,
-  "Pacific Standard Time": -8,
-  "UTC": 0
-};
-
 console.log(`[iCalendar] Plug loading (Version ${VERSION})...`);
 
 // ============================================================================
@@ -67,30 +53,21 @@ function toLocalISO(d: Date): string {
 }
 
 /**
- * Robustly converts an ICS date object to a localized PST string
+ * Simplified date processor that trusts the parsed Date object
  */
 function processIcsDate(obj: any, manualShift = 0): string {
   if (!obj) return "";
 
-  // Handle case where it's already a Date object
-  if (obj instanceof Date) {
-    return toLocalISO(new Date(obj.getTime() + (manualShift * 3600000)));
-  }
-
-  // Extract the underlying Date object from the ts-ics structure
-  const baseDate = obj.date instanceof Date ? obj.date : null;
-  if (!baseDate) return "";
-
-  // If ts-ics gave us a 'local' field, it has already tried to parse the TZID
-  const tzName = obj.local?.timezone || obj.timezone || "UTC";
-  const sourceOffset = TIMEZONE_OFFSETS[tzName] || 0;
+  // The 'date' property from ts-ics is already a native JS Date object
+  // which has been parsed with the correct TZID context if available.
+  const d = obj.date instanceof Date ? obj.date : (obj instanceof Date ? obj : null);
   
-  // Calculate the TRUE UTC time if it wasn't already in UTC
-  // WallTime (baseDate) - SourceOffset = UTC
-  const utcTime = baseDate.getTime() - (sourceOffset * 3600000);
+  if (!d) return "";
+
+  // Apply ONLY the user requested shift
+  const shiftedDate = new Date(d.getTime() + (manualShift * 3600000));
   
-  // Create final localized date
-  return toLocalISO(new Date(utcTime + (manualShift * 3600000)));
+  return toLocalISO(shiftedDate);
 }
 
 function isIcsDateObjects(obj: any): obj is IcsDateObjects {
@@ -219,4 +196,4 @@ export async function clearCache() {
 
 export async function showVersion() {
   await editor.flashNotification(`iCalendar Plug ${VERSION}`, "info");
-}
\ No newline at end of file
+}