There are dozens of recognized time zones throughout the world. Time zone information may occasionally be included in scientific writing, depending on whether such data are useful for comprehension. In general, however, time zone information may be omitted. If included, the zone’s abbreviation may or may not be added in parentheses (some time zone abbreviations have more than one possible expansion, eg, BST stands for Bangladesh standard time [Asia], Bougainville standard time [Pacific], and British summer time [Europe]).

The international team of investigators scheduled a video conference via Skype at 9 am CST (central standard time) to discuss issues concerning its upcoming clinical trial.

The circadian rhythm aspects of sleep and wakefulness allow us researchers to understand both the normal physiology and the pathophysiology of occasional sleepiness related to shift work among health care workers and to travel across time zones.

Institutions that are interested in applying to become a center for excellence may participate in a webinar on September 12, 2017, from 3 pm to 5 pm EST.

A very useful resource for current times worldwide is available at The World Clock.—Roxanne K. Young, ELS