An information providing system comprising: a passenger conveyor including a handrail belt comprising a plurality of tag portions each including a storage unit that stores a tag identification information; a portable terminal that reads a first tag identification information and transmits the first tag identification information and a portable terminal identification information; an information providing device that transmits a providing information corresponding to the first tag identification information and the portable terminal identification information; and (a) a reader device such that at least a part of the handrail belt is within communicable range, wherein the reader device reads a second tag identification information and transmits the second tag identification information to the information providing device, and the information providing device calculates a user position based on the first tag identification information, the second tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, a second tag reading time when the reader device reads the second tag identification information, and a speed value of the handrail belt, or (b) a writer device such that at least a part of the handrail belt is within communicable range, the writer device including a timer, and writing the writing time obtained by the timer in the storage unit; wherein the portable terminal reads the first tag identification information and the writing time; and wherein the information providing device calculates a user position based on the first tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, the writing time information, and a speed value of the handrail belt. a passenger conveyor including a handrail belt comprising a plurality of tag portions each including a storage unit that stores a tag identification information; a portable terminal that reads a first tag identification information and transmits the first tag identification information and a portable terminal identification information; an information providing device that transmits a providing information corresponding to the first tag identification information and the portable terminal identification information; and (a) a reader device such that at least a part of the handrail belt is within communicable range, wherein the reader device reads a second tag identification information and transmits the second tag identification information to the information providing device, and the information providing device calculates a user position based on the first tag identification information, the second tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, a second tag reading time when the reader device reads the second tag identification information, and a speed value of the handrail belt, or (b) a writer device such that at least a part of the handrail belt is within communicable range, the writer device including a timer, and writing the writing time obtained by the timer in the storage unit; wherein the portable terminal reads the first tag identification information and the writing time; and wherein the information providing device calculates a user position based on the first tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, the writing time information, and a speed value of the handrail belt. (a) a reader device such that at least a part of the handrail belt is within communicable range, wherein the reader device reads a second tag identification information and transmits the second tag identification information to the information providing device, and the information providing device calculates a user position based on the first tag identification information, the second tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, a second tag reading time when the reader device reads the second tag identification information, and a speed value of the handrail belt, or (b) a writer device such that at least a part of the handrail belt is within communicable range, the writer device including a timer, and writing the writing time obtained by the timer in the storage unit; wherein the portable terminal reads the first tag identification information and the writing time; and wherein the information providing device calculates a user position based on the first tag identification information, and a first tag reading time when the portable terminal reads the first tag identification information, the writing time information, and a speed value of the handrail belt.