A method for scheduling an unlicensed spectrum, comprising: receiving, by user equipment UE, a first scheduling time sent by a base station, wherein the first scheduling time is a time used by the UE to use the unlicensed spectrum based on a wireless cellular network and a time used by the UE to use the unlicensed spectrum based on a wireless non-cellular network, and wherein the first scheduling time is expressed by a first system frame number, SFN, and/or a first subframe number; receiving, by the UE, an indication sent by the base station, wherein the indication is used to indicate a first offset time of the first scheduling time; obtaining, by the UE, a second scheduling time according to the indication and the first scheduling time; and using, by the UE, the unlicensed spectrum according to the second scheduling time based on the wireless cellular network and the wireless non-cellular network; sending, by the UE, a suggested scheduling time to the base station, so that the base station obtains the first scheduling time according to a scheduling mode of the wireless cellular system on the unlicensed spectrum and the suggested scheduling time; characterized in that the obtaining, by the UE, a second scheduling time according to the indication and the first scheduling time specifically includes: obtaining the second scheduling time according to the first time and an offset time; wherein the offset time is obtained by converting the first offset time, where the first offset time is an absolute time value, whose unit is milliseconds, and is used to indicate a time deviation according to which the first scheduling time needs to be adjusted, and wherein the first offset time is converted into the offset time, whose unit is number of subframes, according to lengths of each frame or subframe. receiving, by user equipment UE, a first scheduling time sent by a base station, wherein the first scheduling time is a time used by the UE to use the unlicensed spectrum based on a wireless cellular network and a time used by the UE to use the unlicensed spectrum based on a wireless non-cellular network, and wherein the first scheduling time is expressed by a first system frame number, SFN, and/or a first subframe number; receiving, by the UE, an indication sent by the base station, wherein the indication is used to indicate a first offset time of the first scheduling time; obtaining, by the UE, a second scheduling time according to the indication and the first scheduling time; and using, by the UE, the unlicensed spectrum according to the second scheduling time based on the wireless cellular network and the wireless non-cellular network; sending, by the UE, a suggested scheduling time to the base station, so that the base station obtains the first scheduling time according to a scheduling mode of the wireless cellular system on the unlicensed spectrum and the suggested scheduling time; characterized in that the obtaining, by the UE, a second scheduling time according to the indication and the first scheduling time specifically includes: obtaining the second scheduling time according to the first time and an offset time; wherein the offset time is obtained by converting the first offset time, where the first offset time is an absolute time value, whose unit is milliseconds, and is used to indicate a time deviation according to which the first scheduling time needs to be adjusted, and wherein the first offset time is converted into the offset time, whose unit is number of subframes, according to lengths of each frame or subframe.