diff --git a/lib/utils/format-time.js b/lib/utils/format-time.js
index ef87bd93..5b2a1786 100644
--- a/lib/utils/format-time.js
+++ b/lib/utils/format-time.js
@@ -7,10 +7,61 @@ const {
   DATE_FORMAT_SIMPLE
 } = require('../constants')
 
-const dateformat = require('@pinojs/dateformat')
+const { dateformat, DateFormatter } = require('@pinojs/dateformat')
 const createDate = require('./create-date')
 const isValidDate = require('./is-valid-date')
 
+const simpleDateFormatter = new DateFormatter(DATE_FORMAT_SIMPLE)
+const standardDateFormatter = new DateFormatter(DATE_FORMAT)
+
+/**
+ * Checks if the given format string is a UTC format.
+ *
+ * @param {string} mask The format string to check.
+ * @returns {mask is `UTC:${string}`} `true` if the format string is a UTC format, otherwise `false`.
+ */
+function isUTC (mask) {
+  return (
+    (mask.charCodeAt(0) | 0x20 === 0x75) && // 'u'
+    (mask.charCodeAt(1) | 0x20 === 0x74) && // 't'
+    (mask.charCodeAt(2) | 0x20 === 0x63) // 'c'
+  )
+}
+
+/**
+ * Checks if the given format string is a SYS format.
+ *
+ * @param {string} mask The format string to check.
+ * @returns {mask is `SYS:${string}`} `true` if the format string is a SYS format, otherwise `false`.
+ */
+function isSYS (mask) {
+  return (
+    (mask.charCodeAt(0) | 0x20 === 0x73) && // 's'
+    (mask.charCodeAt(1) | 0x20 === 0x79) && // 'y'
+    (mask.charCodeAt(2) | 0x20 === 0x73) // 's'
+  )
+}
+
+/**
+ * Checks if the given format string is SYS:STANDARD.
+ *
+ * @param {`SYS:${string}`} mask The format string to check.
+ * @returns {mask is 'SYS:STANDARD'} `true` if the format string is SYS:STANDARD, otherwise `false`.
+ */
+function isSysStandard (mask) {
+  return (
+    mask.length === 12 &&
+    (mask.charCodeAt(4) | 0x20 === 0x73) && // 's'
+    (mask.charCodeAt(5) | 0x20 === 0x74) && // 't'
+    (mask.charCodeAt(6) | 0x20 === 0x61) && // 'a'
+    (mask.charCodeAt(7) | 0x20 === 0x6e) && // 'n'
+    (mask.charCodeAt(8) | 0x20 === 0x64) && // 'd'
+    (mask.charCodeAt(9) | 0x20 === 0x61) && // 'a'
+    (mask.charCodeAt(10) | 0x20 === 0x72) && // 'r'
+    (mask.charCodeAt(11) | 0x20 === 0x64) // 'd
+  )
+}
+
 /**
  * Converts a given `epoch` to a desired display format.
  *
@@ -46,21 +97,23 @@ function formatTime (epoch, translateTime = false) {
   }
 
   if (translateTime === true) {
-    return dateformat(instant, DATE_FORMAT_SIMPLE)
+    return simpleDateFormatter.format(instant)
   }
 
-  const upperFormat = translateTime.toUpperCase()
-  if (upperFormat === 'SYS:STANDARD') {
-    return dateformat(instant, DATE_FORMAT)
+  if (translateTime[3] !== ':') {
+    return dateformat(instant, translateTime)
   }
 
-  const prefix = upperFormat.substr(0, 4)
-  if (prefix === 'SYS:' || prefix === 'UTC:') {
-    if (prefix === 'UTC:') {
-      return dateformat(instant, translateTime)
+  if (isSYS(translateTime)) {
+    if (isSysStandard(translateTime)) {
+      return standardDateFormatter.format(instant)
     }
     return dateformat(instant, translateTime.slice(4))
   }
 
-  return dateformat(instant, `UTC:${translateTime}`)
+  if (isUTC(translateTime)) {
+    return dateformat(instant, translateTime, true)
+  }
+
+  return dateformat(instant, translateTime)
 }
diff --git a/package.json b/package.json
index 2ed74240..561dc623 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "test"
   ],
   "dependencies": {
-    "@pinojs/dateformat": "^1.0.0-rc.1",
+    "@pinojs/dateformat": "^1.0.0-rc.2",
     "colorette": "^2.0.7",
     "fast-copy": "^3.0.2",
     "fast-safe-stringify": "^2.1.1",
diff --git a/test/basic.test.js b/test/basic.test.js
index 06a74b64..aaf573a4 100644
--- a/test/basic.test.js
+++ b/test/basic.test.js
@@ -7,7 +7,7 @@ const os = require('node:os')
 const { describe, test, beforeEach, afterEach } = require('node:test')
 const match = require('@jsumners/assert-match')
 const pino = require('pino')
-const dateformat = require('@pinojs/dateformat')
+const { dateformat } = require('@pinojs/dateformat')
 const rimraf = require('rimraf')
 const { join } = require('node:path')
 const fs = require('node:fs')