The 24-hour clock is a way of telling the time in which the day runs from midnight to midnight and is divided into 24 hours, numbered from 0 to 24. It does not use a.m. or p.m. This system is also referred to (only in the US and the English speaking parts of Canada) as military time[1] or (only in the United Kingdom and now very rarely) as continental time. In some parts of the world, it is called railway time. Also, the international standard notation of time (ISO 8601) is based on this format.
A time in the 24-hour clock is written in the form hours:minutes (for example, 01:23), or hours:minutes:seconds (01:23:45). Numbers under 10 usually have a zero in front (called a leading zero); e.g. 09:07. Under the 24-hour clock system, the day begins at midnight, 00:00, and the last minute of the day begins at 23:59 and ends at 24:00, which is identical to 00:00 of the following day. 12:00 can only be mid-day. Midnight is called 24:00 and is used to mean the end of the day and 00:00 is used to mean the beginning of the day. For example, you would say "Tuesday at 24:00" and "Wednesday at 00:00" to mean exactly the same time.
However, the US military prefers not to say 24:00 - they do not like to have two names for the same thing, so they always say "23:59", which is one minute before midnight.
24-hour clock time is used in computers, military, public safety, and transport. In many Asian, European and Latin American countries people use it to write the time. Many European people use it in speaking. Many digital wristwatches and clocks can display the time of day using the 24-hour clock. In railway timetables 24:00 means the end of the day. For example, a train due to arrive at a station during the last minute of a day arrives at 24:00; but trains which depart during the first minute of the day go at 00:00. To write shop opening hours until midnight use, for example, "00:00–24:00", "07:00–24:00". Advantages over the 12-hour clock system:
Page 224-hour clock is available in 30 other languages. Return to 24-hour clock
 Marketing to and communicating with audiences around the globe presents both an exciting opportunity as well as some unique challenges and considerations. Here are some helpful resources to avoid confusion and get your best results. 24-Hour Clock Time ConversionNaturally, there are differences to consider from one country and culture to another, and one of the most practical ones is the timing of your communications. As a refresher, the United States uses an AM and PM format, whereas the 24-hour clock, sometimes referred to as military time, is more commonly used in Europe. Here's a handy table to help you easily convert AM and PM times to a 24-hour clock time format.
Another time-related aspect to stay on top of is time zones. For instance, you may be planning your email marketing and communication campaigns from your office in New York, while your target audiences are in Paris. In this case, you'll need to convert Eastern Time (ET) for New York to Central European Time (CET) for Paris. Time Zones on Wikipedia » Daylight Saving Time (DST)Twice a year, you'll need to factor in Daylight Saving Time (DST), in which many countries adjust their clocks. Each country determines its specific time change procedures. These clock adjustments are made in the spring and fall, usually from mid-to-late-March and late-October to early November. As some marketing content is seasonal, be sure to keep in mind that spring in the Northern Hemisphere begins in March, while March marks the start of autumn in the Southern Hemisphere. Daylight Saving Time on Wikipedia » Coordinated Universal Time (UTC)UTC is the time standard used in clocks around the world. It is used for international coordination because with UTC there is no risk of confusion about the various time zones. UTC in any locality is designated as UTC- in the west or UTC+ in the east. Coordinated Universal Time on Wikipedia » Date Formats (YYYY-MM-DD)A reminder that date formats are presented differently in different countries. The order of the numbers can vary, for instance from YYYY-MM-DD to DD-MM-YYYY. Date Format by Country on Wikipedia » International HolidaysAs you know, holidays and special celebrations differ from one country to another. So before planning the date and time to send your communications, be sure to check the national holidays and other important observances of your target audience locations. List of Holidays by Country on Wikipedia » Email Laws and Regulations ("Opt-in Laws") Around the WorldWith email marketing, it's a must to understand and follow the legislation and other requirements of the country or countries where your email recipients are located. Email regulations vary among regions and countries, and significant fines are imposed for breaching these laws. For instance, in the European Union (EU), you need to comply with the General Data Protection Regulation (GDPR), which requires senders to have recipients' explicit permission for both email marketing and email tracking. Opt-In and Privacy Laws in North America and Europe » Must-Haves for Email Marketing PlatformsWhen you choose permission marketing technology solutions for your global communications, be sure that they include these essential features at a minimum:
L-Soft's Email Marketing TechnologyExploring solutions for your global email marketing? LISTSERV® Maestro is built on best practices and compliance with the stricter regulations in Europe. L-Soft's email marketing solution offers you four different email tracking levels, providing additional support for compliance with the EU GDPR. LISTSERV Maestro is available as software or a cloud service, from L-Soft.
We're happy to help you find the best solution for your global communications and marketing.
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