diff --git a/drivers/ieee802154/ieee802154_nrf5.c b/drivers/ieee802154/ieee802154_nrf5.c
index 530ac346993..7bc8a33a1a1 100644
--- a/drivers/ieee802154/ieee802154_nrf5.c
+++ b/drivers/ieee802154/ieee802154_nrf5.c
@@ -42,7 +42,7 @@ LOG_MODULE_REGISTER(LOG_MODULE_NAME);
 #include "ieee802154_nrf5.h"
 #include "nrf_802154.h"
 
-#ifdef CONFIG_NRF_802154_SER_HOST
+#if defined(CONFIG_NRF_802154_SER_HOST)
 #include "nrf_802154_serialization_error.h"
 #endif
 
@@ -511,6 +511,13 @@ static int nrf5_tx(const struct device *dev,
 	return -EIO;
 }
 
+static uint64_t nrf5_get_time(const struct device *dev)
+{
+	ARG_UNUSED(dev);
+
+	return nrf_802154_time_get();
+}
+
 static int nrf5_start(const struct device *dev)
 {
 	ARG_UNUSED(dev);
@@ -803,7 +810,7 @@ void nrf_802154_energy_detection_failed(nrf_802154_ed_error_t error)
 	}
 }
 
-#ifdef CONFIG_NRF_802154_SER_HOST
+#if defined(CONFIG_NRF_802154_SER_HOST)
 void nrf_802154_serialization_error(const nrf_802154_ser_err_data_t *p_err)
 {
 	__ASSERT(false, "802.15.4 serialization error");
@@ -826,6 +833,7 @@ static struct ieee802154_radio_api nrf5_radio_api = {
 	.stop = nrf5_stop,
 	.tx = nrf5_tx,
 	.ed_scan = nrf5_energy_scan_start,
+	.get_time = nrf5_get_time,
 	.configure = nrf5_configure,
 };
 
diff --git a/include/net/ieee802154_radio.h b/include/net/ieee802154_radio.h
index 48225df7fa5..bd43324732a 100644
--- a/include/net/ieee802154_radio.h
+++ b/include/net/ieee802154_radio.h
@@ -237,6 +237,9 @@ struct ieee802154_radio_api {
 	int (*ed_scan)(const struct device *dev,
 		       uint16_t duration,
 		       energy_scan_done_cb_t done_cb);
+
+	/** Get the current radio time in microseconds */
+	uint64_t (*get_time)(const struct device *dev);
 };
 
 /* Make sure that the network interface API is properly setup inside
diff --git a/subsys/net/lib/openthread/platform/radio.c b/subsys/net/lib/openthread/platform/radio.c
index 8ee412fb8d3..adf965d8bcf 100644
--- a/subsys/net/lib/openthread/platform/radio.c
+++ b/subsys/net/lib/openthread/platform/radio.c
@@ -257,7 +257,16 @@ void transmit_message(struct k_work *tx_job)
 	radio_api->set_channel(radio_dev, sTransmitFrame.mChannel);
 	radio_api->set_txpower(radio_dev, tx_power);
 
-	if (sTransmitFrame.mInfo.mTxInfo.mCsmaCaEnabled) {
+	if ((radio_api->get_capabilities(radio_dev) & IEEE802154_HW_TXTIME) &&
+	    (sTransmitFrame.mInfo.mTxInfo.mTxDelay != 0)) {
+		uint64_t tx_at = sTransmitFrame.mInfo.mTxInfo.mTxDelayBaseTime +
+				 sTransmitFrame.mInfo.mTxInfo.mTxDelay;
+		net_pkt_set_txtime(tx_pkt, NSEC_PER_USEC * tx_at);
+		if (radio_api->tx(radio_dev, IEEE802154_TX_MODE_TXTIME_CCA,
+				  tx_pkt, tx_payload)) {
+			tx_result = OT_ERROR_INVALID_STATE;
+		}
+	} else if (sTransmitFrame.mInfo.mTxInfo.mCsmaCaEnabled) {
 		if (radio_api->get_capabilities(radio_dev) &
 		    IEEE802154_HW_CSMA) {
 			if (radio_api->tx(radio_dev, IEEE802154_TX_MODE_CSMA_CA,
@@ -878,3 +887,10 @@ otError otPlatRadioSetTransmitPower(otInstance *aInstance, int8_t aPower)
 
 	return OT_ERROR_NONE;
 }
+
+uint64_t otPlatRadioGetNow(otInstance *aInstance)
+{
+	ARG_UNUSED(aInstance);
+
+	return radio_api->get_time(radio_dev);
+}