diff --git a/packages/frontend/src/components/MkPoll.vue b/packages/frontend/src/components/MkPoll.vue
index 03df170a46..01ffc32cba 100644
--- a/packages/frontend/src/components/MkPoll.vue
+++ b/packages/frontend/src/components/MkPoll.vue
@@ -50,9 +50,11 @@ const props = defineProps<{
 
 const now = useLowresTime();
 
+const expiresAtTime = computed(() => props.expiresAt ? new Date(props.expiresAt).getTime() : null);
+
 const remaining = computed(() => {
-	if (props.expiresAt == null) return -1;
-	return Math.floor(Math.max(new Date(props.expiresAt).getTime() - now.value, 0) / 1000);
+	if (expiresAtTime.value == null) return -1;
+	return Math.floor(Math.max(expiresAtTime.value - now.value, 0) / 1000);
 });
 
 const total = computed(() => sum(props.choices.map(x => x.votes)));
diff --git a/packages/frontend/src/components/global/MkTime.vue b/packages/frontend/src/components/global/MkTime.vue
index 23dc2269f1..275d60b22c 100644
--- a/packages/frontend/src/components/global/MkTime.vue
+++ b/packages/frontend/src/components/global/MkTime.vue
@@ -14,7 +14,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <script lang="ts" setup>
 import isChromatic from 'chromatic/isChromatic';
-import { computed } from 'vue';
+import { ref, computed, watch } from 'vue';
 import { i18n } from '@/i18n.js';
 import { dateTimeFormat } from '@@/js/intl-const.js';
 import { useLowresTime } from '@/composables/use-lowres-time.js';
@@ -47,7 +47,8 @@ const _time = props.time == null ? NaN : getDateSafe(props.time).getTime();
 const invalid = Number.isNaN(_time);
 const absolute = !invalid ? dateTimeFormat.format(_time) : i18n.ts._ago.invalid;
 
-const now = useLowresTime();
+const actualNow = useLowresTime();
+const now = computed(() => (props.origin ? props.origin.getTime() : actualNow.value));
 
 // eslint-disable-next-line vue/no-setup-props-reactivity-loss
 const ago = computed(() => (now.value - _time) / 1000/*ms*/);