Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.  You don't know how to make a good report?  See

     http://orgmode.org/manual/Feedback.html#Feedback

Your bug report will be posted to the Org mailing list.
------------------------------------------------------------------------

org-clock-in in org-clock.el calculates org-clock-total-time via calling
(org-clock-sum-current-item (org-clock-get-sum-start)).
However, org-clock-get-sum-start returns the time in UTC, which is not
considered by org-clock-sum-current-time.

My time zone if UTC+8 and org-clock-mode-line-total is 'today. Hence
org-clock-total-time is gives total time starting from 8am today (which
is midnight in UTC) instead of midnight in UTC+8.

Emacs  : GNU Emacs 25.3.1 (x86_64-pc-linux-gnu, X toolkit)
 of 2017-12-06
Package: Org mode version 9.1.4 (9.1.4-13-g84cb63-elpa @ /home/yantar92/.emacs.d/elpa/org-20171218/)

-- 
Ihor Radchenko,
PhD Student
Singapore University of Technology and Design,
8 Somapah Road Singapore 487372
Email: yantar92@gmail.com, ihor_radchenko@mymail.sutd.edu.sg
Tel: +6584017977