diff --git a/web/src/app/globals.css b/web/src/app/globals.css
index f33309829..4d82ddd8d 100644
--- a/web/src/app/globals.css
+++ b/web/src/app/globals.css
@@ -1930,10 +1930,12 @@
       font-size: 11px;
       vertical-align: middle;
     }
+    /* 13px, as every other date and label in the journal. At 10.5px the
+       archive's 74 dates and reading times were the smallest text on it. */
     .journal-list-meta {
       display: inline-block;
       margin-top: 8px;
-      font-size: 10.5px;
+      font-size: var(--pf-fs-mono);
       line-height: 1;
       text-transform: uppercase;
       color: var(--ink-muted);
diff --git a/web/src/components/journal/journalCss.test.ts b/web/src/components/journal/journalCss.test.ts
index 1fa78a9cb..d28d9fe8a 100644
--- a/web/src/components/journal/journalCss.test.ts
+++ b/web/src/components/journal/journalCss.test.ts
@@ -349,3 +349,43 @@ describe("journal rules", () => {
     }
   });
 });
+
+// Below 721px the archive's dates and reading times were 10.5px, under the
+// 13px every other date, label and caption in the journal keeps. On 28
+// October that was all 74 of them on /journal and /journal/en at 360, 390 and
+// 430.
+
+describe("journal dates on a phone", () => {
+  const all = rules(css);
+  const desktop = rules(withoutMedia(css));
+  const phone = mediaBlocks(css, "(max-width: 720px)").flatMap(rules);
+  const root = all.find((r) => r.selectors.includes(":root") && declaration(r.body, "--pf-fs-mono"));
+  /** "13px" or "var(--pf-fs-mono)" → 13. */
+  const px = (value: string) => {
+    const token = value.match(/^var\((--[\w-]+)\)$/)?.[1];
+    return parseFloat(token ? (declaration(root?.body ?? "", token) ?? "") : value);
+  };
+  /** The font-size the last rule for `selector` gives it on a phone, the phone's own rules first. */
+  const size = (selector: string) => {
+    const last = (list: ReturnType<typeof rules>) =>
+      list
+        .filter((r) => r.selectors.includes(selector))
+        .map((r) => declaration(r.body, "font-size"))
+        .filter((v): v is string => Boolean(v))
+        .at(-1);
+    return last(phone) ?? last(desktop);
+  };
+
+  it.each([
+    ".journal-list-meta",
+    ".journal-context-list .journal-list-meta",
+    ".journal-featured-meta",
+    ".journal-dateline",
+    ".journal-md-figure figcaption",
+    ".journal-hero-cover figcaption",
+  ])("sets %s at 13px or more", (selector) => {
+    const value = size(selector);
+    expect(value, `no font-size for ${selector}`).toBeDefined();
+    expect(px(value!)).toBeGreaterThanOrEqual(13);
+  });
+});