diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7bb6c99d9..66c398c0e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 All changes that impact users of this module are documented in this file, in the [Common Changelog](https://common-changelog.org) format with some additional specifications defined in the CONTRIBUTING file. This codebase adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## Unreleased [minor]
+
+> Development of this release was supported by the [French Ministry for Foreign Affairs](https://www.diplomatie.gouv.fr/fr/politique-etrangere-de-la-france/diplomatie-numerique/) through its ministerial [State Startups incubator](https://beta.gouv.fr/startups/open-terms-archive.html) under the aegis of the Ambassador for Digital Affairs.
+
+### Added
+
+- Add configuration option to toggle timestamp prefix in logs; set [`@opentermsarchive/engine.logger.timestampPrefix` to `true` or `false` in your configuration file](https://docs.opentermsarchive.org/#configuring) to control this feature.
+
 ## 2.6.0 - 2024-11-19
 
 _Full changeset and discussions: [#1116](https://github.com/OpenTermsArchive/engine/pull/1116)._
diff --git a/config/default.json b/config/default.json
index 0d3d82eac..2d18aeac3 100644
--- a/config/default.json
+++ b/config/default.json
@@ -48,7 +48,8 @@
         "host": "smtp-relay.sendinblue.com",
         "username": "admin@opentermsarchive.org"
       },
-      "sendMailOnError": false
+      "sendMailOnError": false,
+      "timestampPrefix": true
     },
     "notifier": {
       "sendInBlue": {
diff --git a/scripts/dataset/logger/index.js b/scripts/dataset/logger/index.js
index 3bf065e94..4c2389ecf 100644
--- a/scripts/dataset/logger/index.js
+++ b/scripts/dataset/logger/index.js
@@ -1,3 +1,4 @@
+import config from 'config';
 import winston from 'winston';
 
 import logger from '../../../src/logger/index.js';
@@ -6,11 +7,13 @@ const { combine, timestamp, printf, colorize } = winston.format;
 
 logger.format = combine(
   colorize(),
-  timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
+  timestamp({ format: 'YYYY-MM-DDTHH:MM:SSZ' }),
   printf(({ level, message, counter, hash, timestamp }) => {
     const prefix = counter && hash ? `${counter.toString().padEnd(6)} ${hash.padEnd(40)}` : '';
 
-    return `${timestamp} ${level.padEnd(15)} ${prefix.padEnd(50)} ${message}`;
+    const timestampPrefix = config.get('@opentermsarchive/engine.logger.timestampPrefix') ? `${timestamp} ` : '';
+
+    return `${timestampPrefix}${level.padEnd(15)} ${prefix.padEnd(50)} ${message}`;
   }),
 );
 
diff --git a/src/collection-api/logger.js b/src/collection-api/logger.js
index c1df1c8fa..c1287dbd4 100644
--- a/src/collection-api/logger.js
+++ b/src/collection-api/logger.js
@@ -30,8 +30,12 @@ if (config.get('@opentermsarchive/engine.logger.sendMailOnError')) {
 const logger = winston.createLogger({
   format: combine(
     colorize(),
-    timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
-    printf(({ level, message, timestamp }) => `${timestamp} ${level.padEnd(15)} ${message}`),
+    timestamp({ format: 'YYYY-MM-DDTHH:MM:SSZ' }),
+    printf(({ level, message, timestamp }) => {
+      const timestampPrefix = config.get('@opentermsarchive/engine.logger.timestampPrefix') ? `${timestamp} ` : '';
+
+      return `${timestampPrefix}${level.padEnd(15)} ${message}`;
+    }),
   ),
   transports,
   rejectionHandlers: transports,
diff --git a/src/logger/index.js b/src/logger/index.js
index ca8594759..ea94f489c 100644
--- a/src/logger/index.js
+++ b/src/logger/index.js
@@ -8,23 +8,17 @@ const { combine, timestamp, printf, colorize } = winston.format;
 
 const alignedWithColorsAndTime = combine(
   colorize(),
-  timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
+  timestamp({ format: 'YYYY-MM-DDTHH:MM:SSZ' }),
   printf(({ level, message, timestamp, serviceId, termsType, documentId }) => {
-    let prefix = '';
+    const servicePrefix = serviceId && termsType
+      ? `${serviceId} — ${termsType}${documentId ? `:${documentId}` : ''}`
+      : '';
 
-    if (serviceId && termsType) {
-      prefix = `${serviceId} — ${termsType}`;
-    }
-
-    if (documentId) {
-      prefix = `${prefix}:${documentId}`;
-    }
+    const truncatedPrefix = servicePrefix.length > 75 ? `${servicePrefix.slice(0, 74)}…` : servicePrefix;
 
-    if (prefix.length > 75) {
-      prefix = `${prefix.substring(0, 74)}…`;
-    }
+    const timestampPrefix = config.get('@opentermsarchive/engine.logger.timestampPrefix') ? `${timestamp} ` : '';
 
-    return `${timestamp} ${level.padEnd(15)} ${prefix.padEnd(75)} ${message}`;
+    return `${timestampPrefix}${level.padEnd(15)} ${truncatedPrefix.padEnd(75)} ${message}`;
   }),
 );