diff --git a/app/webpacker/components/CompetitionsOverview/ListViewSection.js b/app/webpacker/components/CompetitionsOverview/ListViewSection.js
index 2aaf6f47cb..fdd6fdecc7 100644
--- a/app/webpacker/components/CompetitionsOverview/ListViewSection.js
+++ b/app/webpacker/components/CompetitionsOverview/ListViewSection.js
@@ -4,6 +4,7 @@ import {
 } from 'semantic-ui-react';
 
 import { BarLoader } from 'react-spinners';
+import { DateTime } from 'luxon';
 import I18n from '../../lib/i18n';
 import {
   computeAnnouncementStatus,
@@ -21,7 +22,7 @@ import {
 } from '../../lib/utils/competition-table';
 import { countries } from '../../lib/wca-data.js.erb';
 import { adminCompetitionUrl, competitionUrl } from '../../lib/requests/routes.js.erb';
-import { dateRange } from '../../lib/utils/dates';
+import { dateRange, toRelativeOptions } from '../../lib/utils/dates';
 
 function ListViewSection({
   competitions,
@@ -450,22 +451,42 @@ function RegistrationStatus({ comp, isLoading }) {
     return (
       <Popup
         trigger={<Icon name="clock" color="blue" />}
-        content={I18n.t('competitions.index.tooltips.registration.opens_in', { duration: comp.time_until_registration })}
+        content={
+          I18n.t(
+            'competitions.index.tooltips.registration.opens_in',
+            {
+              relativeDate: DateTime.fromISO(comp.registration_open).toRelative(
+                toRelativeOptions.default,
+              ),
+            },
+          )
+        }
         position="top center"
         size="tiny"
       />
     );
   }
+
   if (comp.registration_status === 'past') {
     return (
       <Popup
         trigger={<Icon name="user times" color="red" />}
-        content={I18n.t('competitions.index.tooltips.registration.closed', { days: I18n.t('common.days', { count: dayDifferenceFromToday(comp.start_date) }) })}
+        content={
+          I18n.t(
+            'competitions.index.tooltips.registration.closed',
+            {
+              relativeDate: DateTime.fromISO(comp.start_date).toRelative(
+                toRelativeOptions.roundUpAndAtBestDayPrecision,
+              ),
+            },
+          )
+        }
         position="top center"
         size="tiny"
       />
     );
   }
+
   if (comp.registration_status === 'full') {
     return (
       <Popup
@@ -476,6 +497,7 @@ function RegistrationStatus({ comp, isLoading }) {
       />
     );
   }
+
   if (comp.registration_status === 'open') {
     return (
       <Popup
diff --git a/app/webpacker/components/MyCompetitions/UpcomingCompetitionTable.jsx b/app/webpacker/components/MyCompetitions/UpcomingCompetitionTable.jsx
index acbad9a64d..9439f1b798 100644
--- a/app/webpacker/components/MyCompetitions/UpcomingCompetitionTable.jsx
+++ b/app/webpacker/components/MyCompetitions/UpcomingCompetitionTable.jsx
@@ -10,6 +10,7 @@ import {
   DateTableCell, LocationTableCell, NameTableCell, ReportTableCell,
 } from './TableCells';
 import I18nHTMLTranslate from '../I18nHTMLTranslate';
+import { toRelativeOptions } from '../../lib/utils/dates';
 
 const competingStatusIcon = (competingStatus) => {
   switch (competingStatus) {
@@ -24,10 +25,10 @@ const competingStatusIcon = (competingStatus) => {
 
 const registrationStatusIconText = (competition) => {
   if (competition.registration_status === 'not_yet_opened') {
-    return I18n.t('competitions.index.tooltips.registration.opens_in', { duration: DateTime.fromISO(competition.registration_open).toRelative({ locale: window.I18n.locale }) });
+    return I18n.t('competitions.index.tooltips.registration.opens_in', { relativeDate: DateTime.fromISO(competition.registration_open).toRelative(toRelativeOptions.default) });
   }
   if (competition.registration_status === 'past') {
-    return I18n.t('competitions.index.tooltips.registration.closed', { days: DateTime.fromISO(competition.start_date).toRelative({ locale: window.I18n.locale }) });
+    return I18n.t('competitions.index.tooltips.registration.closed', { relativeDate: DateTime.fromISO(competition.start_date).toRelative(toRelativeOptions.roundUpAndAtBestDayPrecision) });
   }
   if (competition.registration_status === 'full') {
     return I18n.t('competitions.index.tooltips.registration.full');
diff --git a/app/webpacker/lib/utils/dates.js b/app/webpacker/lib/utils/dates.js
index 5523488962..83420c4871 100644
--- a/app/webpacker/lib/utils/dates.js
+++ b/app/webpacker/lib/utils/dates.js
@@ -1,9 +1,23 @@
 import { DateTime, Interval } from 'luxon';
+
 // parameter name conventions:
 // - `luxonDate` for luxon DateTime objects
 // - `date` for date-only ISO strings (no time)
 // - `dateTime` for date-and-time ISO strings
 
+export const toRelativeOptions = {
+  default: {
+    locale: window.I18n.locale,
+  },
+  roundUpAndAtBestDayPrecision: {
+    locale: window.I18n.locale,
+    // don't be more precise than "days" (i.e. no hours/minutes/seconds)
+    unit: ['years', 'months', 'weeks', 'days'],
+    // round up, e.g. in 8 hours -> pads to 1 day 8 hours -> rounds to "in 1 day"
+    padding: 24 * 60 * 60 * 1000,
+  },
+};
+
 /// / luxon parameters
 
 export const areOnSameDate = (
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 3e2cc0faaf..bcba370284 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -1575,10 +1575,10 @@ en:
         recent: "Last %{count} days"
         #context: the registration status icon
         registration:
-          opens_in: "Registration will open in %{duration}"
-          closed: "Registration has closed. Competition starts in %{days}"
+          opens_in: "Registration will open %{relativeDate}."
+          closed: "Registration has closed. Competition will start %{relativeDate}."
           open: "Registration is open!"
-          full: "Competitor limit reached, new registrations will go to the waiting list"
+          full: "Competitor limit reached, new registrations will go to the waiting list."
       no_more_comps: "No more competitions."
       no_comp_found: "No competitions found."
       no_comp_match: "We didn't find any competitions with %{events}! Try searching for fewer events."