diff --git a/changes/bug2146.1 b/changes/bug2146.1
new file mode 100644
index 0000000000..5b91c59a68
--- /dev/null
+++ b/changes/bug2146.1
@@ -0,0 +1,4 @@
+  - Major bugfixes:
+    o Fix a bug that could break accounting on 64-bit systems with large
+      time_t values, making them hibernate for impossibly long intervals.
+      Bugfix on 0.0.9pre6; fix for bug 2146; fix by boboper.
diff --git a/src/or/hibernate.c b/src/or/hibernate.c
index 356f9a0f55..929c1994c3 100644
--- a/src/or/hibernate.c
+++ b/src/or/hibernate.c
@@ -515,7 +515,6 @@ accounting_run_housekeeping(time_t now)
 static void
 accounting_set_wakeup_time(void)
 {
-  char buf[ISO_TIME_LEN+1];
   char digest[DIGEST_LEN];
   crypto_digest_env_t *d_env;
   int time_in_interval;
@@ -530,6 +529,7 @@ accounting_set_wakeup_time(void)
   }
 
   if (server_identity_key_is_set()) {
+    char buf[ISO_TIME_LEN+1];
     format_iso_time(buf, interval_start_time);
 
     crypto_pk_get_digest(get_server_identity_key(), digest);
@@ -548,7 +548,6 @@ accounting_set_wakeup_time(void)
     char buf2[ISO_TIME_LEN+1];
     format_local_iso_time(buf1, interval_start_time);
     format_local_iso_time(buf2, interval_end_time);
-    time_to_exhaust_bw = GUESS_TIME_TO_USE_BANDWIDTH;
     interval_wakeup_time = interval_start_time;
 
     log_notice(LD_ACCT,
@@ -563,8 +562,8 @@ accounting_set_wakeup_time(void)
 
   time_to_exhaust_bw =
     (get_options()->AccountingMax/expected_bandwidth_usage)*60;
-  if (time_to_exhaust_bw > TIME_MAX) {
-    time_to_exhaust_bw = TIME_MAX;
+  if (time_to_exhaust_bw > INT_MAX) {
+    time_to_exhaust_bw = INT_MAX;
     time_to_consider = 0;
   } else {
     time_to_consider = time_in_interval - (int)time_to_exhaust_bw;
@@ -582,8 +581,6 @@ accounting_set_wakeup_time(void)
      * to be chosen than the last half. */
     interval_wakeup_time = interval_start_time +
       (get_uint32(digest) % time_to_consider);
-
-    format_iso_time(buf, interval_wakeup_time);
   }
 
   {