Date functions in Excel

Walks you through some of the date functions, such as:
today() - for getting today's date,
datevalue() - for getting the date from a text field,
year(), month(), day() and weekday() for extracting year, month or day number from a date,
date() for joining numbers to get a date,
workday() - to get the date that is a certain number of working days away from the current date,
networkdays() - to get the difference in working days between two given dates, and
datediff() - to get the number of days, months or years elapsed between two dates.

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[@vivekshanbhag7422]

Hello Sir, I watched your video on correlation and covariance of two stock markets which was posted 6 years ago however i wanted to know if we need to show causality for this correlation between them how do you implement that ? I am working on a project and any sort of suggestion would be great. Also is there anyway to get in touch with you other than here on youtube ?