diff --git a/NEWS.md b/NEWS.md
index 31bd1fd..8677d13 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,6 +1,7 @@
 # crew.aws.batch 0.0.8
 
 * Deprecate retryable options because `crew` 1.0.0 no longer supports them.
+* In the monitor, return `POSIXct` time stamps for `created`, `started`, and `stopped`.
 
 # crew.aws.batch 0.0.7
 
diff --git a/R/crew_monitor_aws_batch.R b/R/crew_monitor_aws_batch.R
index 4e24b26..fe6b1a5 100644
--- a/R/crew_monitor_aws_batch.R
+++ b/R/crew_monitor_aws_batch.R
@@ -260,9 +260,9 @@ crew_class_monitor_aws_batch <- R6::R6Class(
             arn = character(0L),
             status = character(0L),
             reason = character(0L),
-            created = numeric(0L),
-            started = numeric(0L),
-            stopped = numeric(0L)
+            created = as.POSIXct(numeric(0L)),
+            started = as.POSIXct(numeric(0L)),
+            stopped = as.POSIXct(numeric(0L))
           )
         )
       }
@@ -277,9 +277,9 @@ crew_class_monitor_aws_batch <- R6::R6Class(
           out$statusReason,
           NA_character_
         ),
-        created = out$createdAt,
-        started = if_any(length(out$startedAt), out$startedAt, NA_real_),
-        stopped = if_any(length(out$stoppedAt), out$stoppedAt, NA_real_)
+        created = as_timestamp(out$createdAt),
+        started = as_timestamp(out$startedAt),
+        stopped = as_timestamp(out$stoppedAt)
       )
       # nocov end
     },
@@ -420,9 +420,9 @@ crew_class_monitor_aws_batch <- R6::R6Class(
               job$statusReason,
               NA_character_
             ),
-            created = job$createdAt,
-            started = if_any(length(job$startedAt), job$startedAt, NA_real_),
-            stopped = if_any(length(job$stoppedAt), job$stoppedAt, NA_real_)
+            created = as_timestamp(job$createdAt),
+            started = as_timestamp(job$startedAt),
+            stopped = as_timestamp(job$stoppedAt)
           )
         }
       }
@@ -433,9 +433,9 @@ crew_class_monitor_aws_batch <- R6::R6Class(
           arn = character(0L),
           status = character(0L),
           reason = character(0L),
-          created = numeric(0L),
-          started = numeric(0L),
-          stopped = numeric(0L)
+          created = as.POSIXct(numeric(0L)),
+          started = as.POSIXct(numeric(0L)),
+          stopped = as.POSIXct(numeric(0L))
         )
       }
       out <- do.call(what = vctrs::vec_rbind, args = out)
diff --git a/R/utils_time.R b/R/utils_time.R
new file mode 100644
index 0000000..245b573
--- /dev/null
+++ b/R/utils_time.R
@@ -0,0 +1,3 @@
+as_timestamp <- function(x) {
+  as.POSIXct(if_any(length(x) > 0L, x / 1000, NA_real_))
+}
diff --git a/tests/testthat/test-utils_time.R b/tests/testthat/test-utils_time.R
new file mode 100644
index 0000000..d55ccef
--- /dev/null
+++ b/tests/testthat/test-utils_time.R
@@ -0,0 +1,4 @@
+test_that("as_timestamp()", {
+  expect_true(anyNA(as_timestamp(numeric(0L))))
+  expect_s3_class(as_timestamp(1000), "POSIXct")
+})