A communication method, the method comprising: receiving, by a receiver, a sending packet sent by a transmitter, wherein the sending packet comprises time indication information, wherein the time indication information comprises a processing latency of processing the sending packet by the transmitter and a sum of a processing latency of processing the sending packet by each of at least one intermediate node between the transmitter and the receiver and an acquired transmission latency from a previous node of each of the at least one intermediate node to the intermediate node, the previous node of the intermediate node being the transmitter or another intermediate node; and determining, by the receiver, a latency from the transmitter to the receiver according to the time indication information; wherein the method further comprises: determining, by the receiver, a processing latency of processing the sending packet by the receiver and a transmission latency from a previous node of the receiver to the receiver, and recording the determined processing latency of processing the sending packet by the receiver and the determining transmission latency from the previous node of the receiver to the receiver into the time indication information of the sending packet, the previous node of the receiver being an intermediate node; and determining, by the receiver, the latency from the transmitter to the receiver comprises: determining the latency from the transmitter to the receiver according to a sum of the processing latency of processing the sending packet by the transmitter, the sum of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of each of the at least one intermediate node to the intermediate node, the processing latency of processing the sending packet by the receiver and the transmission latency from the previous node of the receiver to the receiver, wherein sums of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of the corresponding intermediate node to the intermediate node are carried in different information fields of the sending packet. receiving, by a receiver, a sending packet sent by a transmitter, wherein the sending packet comprises time indication information, wherein the time indication information comprises a processing latency of processing the sending packet by the transmitter and a sum of a processing latency of processing the sending packet by each of at least one intermediate node between the transmitter and the receiver and an acquired transmission latency from a previous node of each of the at least one intermediate node to the intermediate node, the previous node of the intermediate node being the transmitter or another intermediate node; and determining, by the receiver, a latency from the transmitter to the receiver according to the time indication information; wherein the method further comprises: determining, by the receiver, a processing latency of processing the sending packet by the receiver and a transmission latency from a previous node of the receiver to the receiver, and recording the determined processing latency of processing the sending packet by the receiver and the determining transmission latency from the previous node of the receiver to the receiver into the time indication information of the sending packet, the previous node of the receiver being an intermediate node; and determining, by the receiver, the latency from the transmitter to the receiver comprises: determining the latency from the transmitter to the receiver according to a sum of the processing latency of processing the sending packet by the transmitter, the sum of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of each of the at least one intermediate node to the intermediate node, the processing latency of processing the sending packet by the receiver and the transmission latency from the previous node of the receiver to the receiver, wherein sums of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of the corresponding intermediate node to the intermediate node are carried in different information fields of the sending packet. determining the latency from the transmitter to the receiver according to a sum of the processing latency of processing the sending packet by the transmitter, the sum of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of each of the at least one intermediate node to the intermediate node, the processing latency of processing the sending packet by the receiver and the transmission latency from the previous node of the receiver to the receiver, wherein sums of the processing latency of processing the sending packet by each of the at least one intermediate node and the acquired transmission latency from the previous node of the corresponding intermediate node to the intermediate node are carried in different information fields of the sending packet.