From a4bd028bd2626d71d7c237f8bc675b36de5c3f3f Mon Sep 17 00:00:00 2001
From: quanticsoul4772 <71096528+quanticsoul4772@users.noreply.github.com>
Date: Tue, 3 Nov 2026 11:47:41 -0800
Subject: [PATCH] changelog: FIRMS age rounding (#1531)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 changelog.d/1531-firms-age-rounding.md | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 changelog.d/1531-firms-age-rounding.md

diff --git a/changelog.d/1531-firms-age-rounding.md b/changelog.d/1531-firms-age-rounding.md
new file mode 100644
index 000000000..e8cc12c4b
--- /dev/null
+++ b/changelog.d/1531-firms-age-rounding.md
@@ -0,0 +1,3 @@
+- FIRMS fire ages round to whole hours before choosing a unit, so a detection
+  47.5–48 hours old reads "2d", as one exactly 48 hours old does, not "48h"
+  (@quanticsoul4772, #1531).