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Code.org. Code.org is a non-profit organization and educational website founded by Hadi and Ali Partovi [ 1] aimed at K-12 students that specializes in computer science. [ 2] The website includes free coding lessons and other resources. The initiative also targets schools in an attempt to encourage them to include more computer science classes ...
During the week of December 9, 2013, CodeHS participated in the nationwide Hour of Code challenge promoted by Code.org. CodeHS was featured as a tutorial for learning JavaScript on the Computer Science Education Week website. Over the course of the week, an estimated 116,648 participants started learning to code for an hour on CodeHS. [9]
Further reading. List of tz database time zones. The tz database partitions the world into regions where local clocks all show the same time. This map was made by combining version 2023d with OpenStreetMap data, using open source software. [ 1 ] This is a list of time zones from release 2024a of the tz database. [ 2 ]
H-Hour. The specific time at which an operation or exercise commences, or is due to commence (this term is used also as a reference for the designation of days/hours before or after the event). (NATO); also known as 'Zero Hour'. I-Day. Used informally within the U.S. military bureaucracy to variously designate the "Implementation Day" or the ...
In the United States, response codes are used to describe a mode of response for an emergency unit responding to a call. They generally vary but often have three basic tiers: Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with emergency lights, but without sirens. Alternatively, sirens may be used if necessary ...
This is a list of the UTC time offsets, showing the difference in hours and minutes from Coordinated Universal Time (UTC), from the westernmost (−12:00) to the easternmost (+14:00). It includes countries and regions that observe them during standard time or year-round. The main purpose of this page is to list the current standard time offsets ...
Non-24-hour sleep–wake disorder ( non-24[ 1] or N24SWD[ 2]) is one of several chronic circadian rhythm sleep disorders (CRSDs). It is defined as a "chronic steady pattern comprising [...] daily delays in sleep onset and wake times in an individual living in a society". [ 3] Symptoms result when the non-entrained ( free-running) endogenous ...
The modern 24-hour clock is the convention of timekeeping in which the day runs from midnight to midnight and is divided into 24 hours. This is indicated by the hours (and minutes) passed since midnight, from 00 (:00) to 23 (:59), with 24 (:00) as an option to indicate the end of the day. This system, as opposed to the 12-hour clock, is the ...