POWER OF ATTORNEY

     Know by all these presents, that the undersigned hereby constitutes and
appoints each of Jim Biehl and Ben R. Taylor, and with full power of
substitution, the undersigned's true and lawful attorney-in-fact to:

     1.   execute for and on behalf of the undersigned, in the undersigned's
          capacity as an officer and/or director of Tyme Technologies, Inc. (the
          "Company"), Forms 3, 4 and 5 in accordance with Section 16(a) of the
          Securities Exchange Act of 1934 and the rules thereunder;

     2.   do and perform any and all acts for and on behalf of the undersigned
          which may be necessary or desirable to complete and execute any such
          Form 3, 4 or 5, complete and execute any amendment or amendments
          thereto, and timely file such form with the SEC and any stock exchange
          or similar authority; and

     3.   take any other action of any type whatsoever in connection with the
          foregoing which, in the opinion of such attorney-in-fact, may be of
          benefit to, in the best interest of, or legally required by, the
          undersigned, it being understood that the documents executed by such
          attorney-in-fact on behalf of the undersigned pursuant to this Power
          of Attorney shall be in such form and shall contain such terms and
          conditions as such attorney-in-fact's discretion.

     The undersigned hereby grants to each such attorney-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or such
attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be
done by virtue of this power of attorney and the rights and powers herein
granted.  The undersigned acknowledges that each of the foregoing attorneys-in-
fact, in serving in such capacity at the request of the undersigned, are not
assuming, nor is the Company assuming, any of the undersigned's responsibilities
to comply with Section 16 of the Securities Exchange Act of 1934.

     This Power of Attorney is coupled with an interest, is irrevocable, and
shall remain in full force and effect until the undersigned is no longer
required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of
and transactions in securities issued by the Company, unless earlier revoked by
the undersigned in a signed writing delivered to the foregoing attorney-in-fact.

     IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be
executed as of this 19th day of August, 2020.


                                  /s/ John M. Rothman
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                                  Signature


                                  John M. Rothman
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