diff --git a/bitcoin/test/run-secret_eq_consttime.c b/bitcoin/test/run-secret_eq_consttime.c
index 6d4cb4141..58933d5f7 100644
--- a/bitcoin/test/run-secret_eq_consttime.c
+++ b/bitcoin/test/run-secret_eq_consttime.c
@@ -16,7 +16,7 @@ static struct timerel const_time_test(struct secret *s1,
 				      struct secret *s2,
 				      size_t off)
 {
-	struct timeabs start, end;
+	struct timemono start, end;
 	int result = 0;
 
 	memset(s1, 0, RUNS * sizeof(*s1));
@@ -25,16 +25,16 @@ static struct timerel const_time_test(struct secret *s1,
 	for (size_t i = 0; i < RUNS; i++)
 		s2[i].data[off] = i;
 
-	start = time_now();
+	start = time_mono();
 	for (size_t i = 0; i < RUNS; i++)
 		result += secret_eq_consttime(&s1[i], &s2[i]);
-	end = time_now();
+	end = time_mono();
 
 	if (result != RUNS / 256)
 		errx(1, "Expected %u successes at offset %zu, not %u!",
 		     RUNS / 256, off, result);
 
-	return time_between(end, start);
+	return timemono_between(end, start);
 }
 
 static inline bool secret_eq_nonconst(const struct secret *a,
@@ -47,7 +47,7 @@ static struct timerel nonconst_time_test(struct secret *s1,
 					 struct secret *s2,
 					 size_t off)
 {
-	struct timeabs start, end;
+	struct timemono start, end;
 	int result = 0;
 
 	memset(s1, 0, RUNS * sizeof(*s1));
@@ -56,16 +56,16 @@ static struct timerel nonconst_time_test(struct secret *s1,
 	for (size_t i = 0; i < RUNS; i++)
 		s2[i].data[off] = i;
 
-	start = time_now();
+	start = time_mono();
 	for (size_t i = 0; i < RUNS; i++)
 		result += secret_eq_nonconst(&s1[i], &s2[i]);
-	end = time_now();
+	end = time_mono();
 
 	if (result != RUNS / 256)
 		errx(1, "Expected %u successes at offset %zu, not %u!",
 		     RUNS / 256, off, result);
 
-	return time_between(end, start);
+	return timemono_between(end, start);
 }
 
 static struct secret *s1, *s2;
diff --git a/onchaind/test/run-grind_feerate.c b/onchaind/test/run-grind_feerate.c
index 759331375..1acff25e4 100644
--- a/onchaind/test/run-grind_feerate.c
+++ b/onchaind/test/run-grind_feerate.c
@@ -111,7 +111,7 @@ int main(int argc, char *argv[])
 	struct amount_sat fee;
 	struct pubkey htlc_key;
 	struct keyset *keys;
-	struct timeabs start, end;
+	struct timemono start, end;
 	int iterations = 1000;
 	u8 *spk = tal_arr(tmpctx, u8, 1);
 	spk[0] = 0x00;
@@ -143,15 +143,15 @@ int main(int argc, char *argv[])
 	max_possible_feerate = 250000;
 	min_possible_feerate = max_possible_feerate + 1 - iterations;
 
-	start = time_now();
+	start = time_mono();
 	if (!grind_htlc_tx_fee(&fee, tx, &sig, wscript, 663))
 		abort();
-	end = time_now();
+	end = time_mono();
 	assert(amount_sat_eq(fee, AMOUNT_SAT(165750)));
 	printf("%u iterations in %"PRIu64" msec = %"PRIu64" nsec each\n",
 	       iterations,
-	       time_to_msec(time_between(end, start)),
-	       time_to_nsec(time_divide(time_between(end, start), iterations)));
+	       time_to_msec(timemono_between(end, start)),
+	       time_to_nsec(time_divide(timemono_between(end, start), iterations)));
 
 	common_shutdown();
 	return 0;