SYS-CON MEDIA Authors: Elizabeth White, Pat Romanski, Carmen Gonzalez, Gary Arora, Zakia Bouachraoui

: Article

Ready for the Leap Year?

Ready for the Leap Year?

While we all made it through the new year, there is still at least one more date issue to contend with. Many systems may not properly recognize that this year, 2000, is a leap year. There are 29 days in February. The good news is that Allaire's date functions do properly recognize this, at least as tested by the following code:


<cfoutput>
Day after 2/28/00: #dateformat(dateadd('d',1,'02/28/00'))#
(dateadd('d',1,'02/28/00'))

Day after 2/29/00: #dateformat(dateadd('d',1,'02/29/00'))# (dateadd('d',1,'02/29/00'))
Day after 2/28/01: #dateformat(dateadd('d',1,'02/28/01'))# (dateadd('d',1,'02/28/01')) </cfoutput>

This tests what the DateAdd function thinks is the day after 2/28/00, 2/29/00 and, for good measure, 2/28/01. The answers, which are correct, are:

Day after 2/28/00: 29-Feb-00 (dateadd('d',1,'02/28/00'))
Day after 2/29/00: 01-Mar-00 (dateadd('d',1,'02/29/00'))
Day after 2/28/01: 01-Mar-01 (dateadd('d',1,'02/28/01'))

Charlie Arehart
Education Director, Fig Leaf Software

More Stories By Charlie Arehart

A veteran ColdFusion developer since 1997, Charlie Arehart is a long-time contributor to the community and a recognized Adobe Community Expert. He's a certified Advanced CF Developer and Instructor for CF 4/5/6/7 and served as tech editor of CFDJ until 2003. Now an independent contractor (carehart.org) living in Alpharetta, GA, Charlie provides high-level troubleshooting/tuning assistance and training/mentoring for CF teams. He helps run the Online ColdFusion Meetup (coldfusionmeetup.com, an online CF user group), is a contributor to the CF8 WACK books by Ben Forta, and is frequently invited to speak at developer conferences and user groups worldwide.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Latest Stories
The level of trust we have with individuals, businesses, and technology affects our lives daily. This is important to remember when discussing new technologies. For example, our level of trust is a critical factor when evaluating a new technology as a potential solution for providing business value. Given the importance of trust, imagine one's reaction upon hearing that blockchain is a "trustless trust" system. On the surface, that does sound like an oxymoron. This paper discusses how "trustless...
Public clouds dominate IT conversations but the next phase of cloud evolutions are "multi" hybrid cloud environments. The winners in the cloud services industry will be those organizations that understand how to leverage these technologies as complete service solutions for specific customer verticals. In turn, both business and IT actors throughout the enterprise will need to increase their engagement with multi-cloud deployments today while planning a technology strategy that will constitute a ...
Data center, on-premise, public-cloud, private-cloud, multi-cloud, hybrid-cloud, IoT, AI, edge, SaaS, PaaS... it's an availability, security, performance and integration nightmare even for the best of the best IT experts. Organizations realize the tremendous benefits of everything the digital transformation has to offer. Cloud adoption rates are increasing significantly, and IT budgets are morphing to follow suit. But distributing applications and infrastructure around increases risk, introdu...
While a hybrid cloud can ease that transition, designing and deploy that hybrid cloud still offers challenges for organizations concerned about lack of available cloud skillsets within their organization. Managed service providers offer a unique opportunity to fill those gaps and get organizations of all sizes on a hybrid cloud that meets their comfort level, while delivering enhanced benefits for cost, efficiency, agility, mobility, and elasticity.
In a recent survey, Sumo Logic surveyed 1,500 customers who employ cloud services such as Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP). According to the survey, a quarter of the respondents have already deployed Docker containers and nearly as many (23 percent) are employing the AWS Lambda serverless computing framework. It's clear: serverless is here to stay. The adoption does come with some needed changes, within both application development and operations. Th...
"Calligo is a cloud service provider with data privacy at the heart of what we do. We are a typical Infrastructure as a Service cloud provider but it's been designed around data privacy," explained Julian Box, CEO and co-founder of Calligo, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
Cloud is the motor for innovation and digital transformation. CIOs will run 25% of total application workloads in the cloud by the end of 2018, based on recent Morgan Stanley report. Having the right enterprise cloud strategy in place, often in a multi cloud environment, also helps companies become a more intelligent business. Companies that master this path have something in common: they create a culture of continuous innovation. In his presentation, Dilipkumar Khandelwal outlined the latest...
Never mind that we might not know what the future holds for cryptocurrencies and how much values will fluctuate or even how the process of mining a coin could cost as much as the value of the coin itself - cryptocurrency mining is a hot industry and shows no signs of slowing down. However, energy consumption to mine cryptocurrency is one of the biggest issues facing this industry. Burning huge amounts of electricity isn't incidental to cryptocurrency, it's basically embedded in the core of "mini...
CloudEXPO has been the M&A capital for Cloud companies for more than a decade with memorable acquisition news stories which came out of CloudEXPO expo floor. DevOpsSUMMIT New York faculty member Greg Bledsoe shared his views on IBM's Red Hat acquisition live from NASDAQ floor. Acquisition news was announced during CloudEXPO New York which took place November 12-13, 2019 in New York City. Our Silicon Valley 2019 schedule will showcase 200 keynotes, sessions, general sessions, power panels, and...
The dream is universal: heuristic driven, global business operations without interruption so that nobody has to wake up at 4am to solve a problem. Building upon Nutanix Acropolis software defined storage, virtualization, and networking platform, Mark will demonstrate business lifecycle automation with freedom of choice and consumption models. Hybrid cloud applications and operations are controllable by the Nutanix Prism control plane with Calm automation, which can weave together the following: ...
Andrew Keys is co-founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereum.
At CloudEXPO Silicon Valley, June 24-26, 2019, Digital Transformation (DX) is a major focus with expanded DevOpsSUMMIT and FinTechEXPO programs within the DXWorldEXPO agenda. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive over the long term. A total of 88% of Fortune 500 companies from a generation ago are now out of business. Only 12% still survive. Similar percentages are found throug...
Every organization is facing their own Digital Transformation as they attempt to stay ahead of the competition, or worse, just keep up. Each new opportunity, whether embracing machine learning, IoT, or a cloud migration, seems to bring new development, deployment, and management models. The results are more diverse and federated computing models than any time in our history.
Japan DX Pavilion at @CloudEXPO Silicon Valley
Bill Schmarzo, author of "Big Data: Understanding How Data Powers Big Business" and "Big Data MBA: Driving Business Strategies with Data Science" is responsible for guiding the technology strategy within Hitachi Vantara for IoT and Analytics. Bill brings a balanced business-technology approach that focuses on business outcomes to drive data, analytics and technology decisions that underpin an organization's digital transformation strategy. Bill has a very impressive background which includes ...