diff --git a/src/datum_utils.c b/src/datum_utils.c
index 9a57102..2c00a4d 100644
--- a/src/datum_utils.c
+++ b/src/datum_utils.c
@@ -132,13 +132,6 @@ uint64_t current_time_micros(void) {
 	return microseconds;
 }
 
-uint64_t current_time_nanos(void) {
-	struct timespec te;
-	clock_gettime(CLOCK_REALTIME, &te);
-	uint64_t nanoseconds = te.tv_sec * 1000000000LL + te.tv_nsec; // calculate nanoseconds
-	return nanoseconds;
-}
-
 unsigned char hex_lookup[65536];
 unsigned short uchar_hex_lookup[256];
 
diff --git a/src/datum_utils.h b/src/datum_utils.h
index fc876a0..363c35a 100644
--- a/src/datum_utils.h
+++ b/src/datum_utils.h
@@ -42,7 +42,6 @@
 
 void datum_utils_init(void);
 uint64_t current_time_millis(void);
-uint64_t current_time_nanos(void);
 uint64_t current_time_micros(void);
 unsigned char hex2bin_uchar(const char *in);
 void build_hex_lookup(void);