diff --git a/API/gimvicurnik/updaters/base.py b/API/gimvicurnik/updaters/base.py
index a17e6b1..58d3320 100644
--- a/API/gimvicurnik/updaters/base.py
+++ b/API/gimvicurnik/updaters/base.py
@@ -163,15 +163,22 @@ def handle_document(self, document: DocumentInfo, span: Span) -> None:
         span.set_tag("document.modified", document.modified)
         span.set_tag("document.action", "crashed")
 
+        # == DOCUMENT EFFECTIVE
+
+        # Get the document's effective date using the subclassed method
+        # This may return none for documents without an effective date
+        # If this fails, we can't do anything other than to skip the document
+        effective = self.get_document_effective(document)
+
         # == DOCUMENT RECORD (GET)
 
         # Try to find an existing document record
-        record = self.retrieve_document(document)
+        record = self.retrieve_document(document, effective)
 
         # == DOCUMENT PROCESSING
 
         # Get the modified time if it is set, otherwise use the current time
-        created = document.created or datetime.datetime.utcnow()
+        created = document.created or datetime.datetime.now(datetime.timezone.utc)
         modified = document.modified or created
 
         # Check if the document has changed without downloading it and comparing hashes
@@ -193,8 +200,8 @@ def handle_document(self, document: DocumentInfo, span: Span) -> None:
             # If this fails, we can't do anything other than to skip the document
             stream, new_hash = self.download_document(document)
 
-            # Check if the document hash has changed
-            if record and record.parsed and record.hash == new_hash:
+            # Check if the document hash or document URL have changed
+            if record and record.parsed and record.hash == new_hash and record.url == document.url:
                 changed = False
             else:
                 action = "updated"
@@ -233,11 +240,6 @@ def handle_document(self, document: DocumentInfo, span: Span) -> None:
 
             return
 
-        # Get the document's effective date using the subclassed method
-        # This may return none for documents without an effective date
-        # If this fails, we can't do anything other than to skip the document
-        effective = self.get_document_effective(document)
-
         if parsable:
             # If there is no date, we can't do anything other than to skip the document
             if not effective:
@@ -320,14 +322,17 @@ def handle_document(self, document: DocumentInfo, span: Span) -> None:
                 self.logger.info("Skipped because the %s document for %s is already stored", document.type.value, effective)
         # fmt: on
 
-    def retrieve_document(self, document: DocumentInfo) -> Document | None:
+    def retrieve_document(self, document: DocumentInfo, effective: datetime.date | None) -> Document | None:
         """Get a document record from the database. May be set by subclasses."""
 
-        return (
-            self.session.query(Document)
-            .filter(Document.type == document.type, Document.url == document.url)
-            .first()
-        )
+        # Normally, the document URL should match
+        criterion = Document.url == document.url
+
+        if effective:
+            # If effective date is set, it may also match instead of the URL
+            criterion |= Document.effective == effective
+
+        return self.session.query(Document).filter(Document.type == document.type, criterion).first()
 
     @with_span(op="download")
     def download_document(self, document: DocumentInfo) -> tuple[BytesIO, str]:
diff --git a/API/gimvicurnik/updaters/menu.py b/API/gimvicurnik/updaters/menu.py
index d5affe2..80df918 100644
--- a/API/gimvicurnik/updaters/menu.py
+++ b/API/gimvicurnik/updaters/menu.py
@@ -90,7 +90,7 @@ def get_document_effective(self, document: DocumentInfo) -> datetime.date:
         # jedilnik-kosilo-YYYY-MM-DD(-popravek).pdf
         # jedilnik-malica-YYYY-MM-DD(-popravek).pdf
         date = re.search(
-            r"jedilnik-(?:kosilo|malica)-(\d+)-(\d+)-(\d+)(?:-[\w-]*)?\.(?:pdf|xlsx)", document.url
+            r"jedilnik-(?:kosilo|malica|K|M)-(\d+)-(\d+)-(\d+)(?:-[\w-]*)?\.(?:pdf|xlsx)", document.url
         )
 
         # The specified date is commonly Monday of the effective week
diff --git a/API/gimvicurnik/updaters/timetable.py b/API/gimvicurnik/updaters/timetable.py
index 11c2a81..a8015cc 100644
--- a/API/gimvicurnik/updaters/timetable.py
+++ b/API/gimvicurnik/updaters/timetable.py
@@ -4,7 +4,7 @@
 import re
 import typing
 from collections import defaultdict
-from datetime import datetime
+from datetime import datetime, timezone
 from hashlib import sha256
 
 import requests
@@ -167,7 +167,7 @@ def _parse(self, document: Document | None, raw_data: str, new_hash: str, span:
             created = False
 
         document.type = DocumentType.TIMETABLE
-        document.modified = datetime.utcnow()
+        document.modified = datetime.now(timezone.utc)
         document.url = self.config.url
         document.hash = new_hash
         self.session.add(document)
diff --git a/website/src/components/TimetableDisplay.vue b/website/src/components/TimetableDisplay.vue
index 10749bb..715fa36 100644
--- a/website/src/components/TimetableDisplay.vue
+++ b/website/src/components/TimetableDisplay.vue
@@ -1,13 +1,14 @@
 <script setup lang="ts">
+import { useIntervalFn } from '@vueuse/core'
 import { storeToRefs } from 'pinia'
-import { computed } from 'vue'
+import { computed, ref } from 'vue'
 
 import TimetableEmptyClassrooms from '@/components/TimetableEmptyClassrooms.vue'
 import TimetableLesson from '@/components/TimetableLesson.vue'
 import { useSessionStore } from '@/stores/session'
 import { EntityType, useSettingsStore } from '@/stores/settings'
 import { type MergedLesson, useTimetableStore } from '@/stores/timetable'
-import { getCurrentDay } from '@/utils/days'
+import { getCurrentDay, getIsWeekend } from '@/utils/days'
 import { localizedWeekdays } from '@/utils/localization'
 import { getCurrentTime, lessonTimes } from '@/utils/times'
 
@@ -25,9 +26,15 @@ const { lessons } = storeToRefs(useTimetableStore())
 const { showHoursInTimetable, highlightCurrentTime, enableLessonDetails } =
   storeToRefs(useSettingsStore())
 
-const isWeekend = [0, 6].includes(new Date().getDay())
-const currentDay = getCurrentDay()
-const currentTime = getCurrentTime()
+const isWeekend = ref(getIsWeekend())
+const currentDay = ref(getCurrentDay())
+const currentTime = ref(getCurrentTime())
+
+useIntervalFn(() => {
+  isWeekend.value = getIsWeekend()
+  currentDay.value = getCurrentDay()
+  currentTime.value = getCurrentTime()
+}, 30000)
 
 /**
  * Determines the range of lesson times that need to be displayed in the timetable.
@@ -48,7 +55,7 @@ function lessonStyles(dayIndex: number, timeIndex: number) {
   // prettier-ignore
   return {
     'bg-surface-highlighted': lessons.value[timeIndex][dayIndex]?.find(lesson => lesson.isSubstitution),
-    'current-time': highlightCurrentTime.value && !isWeekend && dayIndex === currentDay && timeIndex === currentTime,
+    'current-time': highlightCurrentTime.value && !isWeekend.value && dayIndex === currentDay.value && timeIndex === currentTime.value,
   }
 }
 
diff --git a/website/src/utils/days.ts b/website/src/utils/days.ts
index 406f06a..9e1ae74 100644
--- a/website/src/utils/days.ts
+++ b/website/src/utils/days.ts
@@ -22,6 +22,13 @@ export function getCurrentDay(): number {
   return currentDay - 1
 }
 
+/**
+ * Returns whether it is currently a weekend.
+ */
+export function getIsWeekend(): boolean {
+  return [0, 6].includes(new Date().getDay())
+}
+
 /**
  * Returns the weekdays of the week of the given date.
  *
@@ -54,5 +61,9 @@ export function getWeekdays(date: Date): Date[] {
  * Returns the ISO date string of the given date.
  */
 export function getISODate(date: Date): string {
+  // Make sure the date is UTC midnight, otherwise, conversion to ISO may be wrong
+  date = new Date(Date.UTC(date.getFullYear(), date.getMonth(), date.getDate()))
+
+  // Convert the date into ISO format and return the date part
   return date.toISOString().split('T')[0]
 }