CRM stores DateTime values as UTC and then converts them back to the current user's local time when viewing them. As such performing some of the contained actions on dates stored as UTC will produce "unexpected" results. I've given the option where appropriate to either first evaluate the date(s) to the workflow user's local time or as continue as UTC.
Original Date - The DateTime to add to.
Business Days To Add - The number of week day (M-F) days to add.
Holiday/Closure Calendar - The Business Closure or Holiday calendar whose day long events will not be counted when adding days.
Returns - New DateTime with the specified number of business days added.
Original Date - The DateTime to add to.
Days To Add - The number of week day (M-F) days to add.
Returns - New DateTime with the specified number of days added.
Original Date - The DateTime to add to.
Days To Add - The number of hours to add.
Returns - New DateTime with the specified number of hours added.
Original Date - The DateTime to add to.
Days To Add - The number of minutes to add.
Returns - New DateTime with the specified number of minutes added.
Original Date - The DateTime to add to.
Days To Add - The number of months to add.
Returns - New DateTime with the specified number of months added.
Original Date - The DateTime to add to.
Days To Add - The number of years to add.
Returns - New DateTime with the specified number of years added.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - The number of days difference between the specified dates.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - The number of hours difference between the specified dates.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - The number of minutes difference between the specified dates.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - The number of months difference between the specified dates.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - The number of years difference between the specified dates.
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - The number representing the day of the week, Sunday being 1.
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - The number representing the day of the year.
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - The word (Sunday, Monday, etc...) representing the day of the week.
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - The number representing the quarter of the year (1-3, 4-6, 7-9, 10-12).
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - The number representing the week of the year.
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - DateTime of the first day of the month (1/1/2015 12:00:00).
Returns - DateTime of the last day of the month (1/31/2015 11:59:59).
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - DateTime of the first day of the quarter (1/1/2015 12:00:00).
Returns - DateTime of the last day of the quarter (3/31/2015 11:59:59).
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - DateTime of the first day of the week (1/4/2015 12:00:00).
Returns - DateTime of the last day of the week (1/10/2015 11:59:59).
Date To Use - The DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - DateTime of the first day of the year (1/1/2015 12:00:00).
Returns - DateTime of the last day of the year (12/31/2015 11:59:59).
Starting Date - The beginning DateTime of the range.
Date To Validate - The DateTime to evaluate.
Ending Date - The ending DateTime of the range.
Returns - Boolean value indicating if the specified DateTime is in the defined range.
Date To Check - The DateTime to evaluate.
Holiday/Closure Calendar - The Business Closure or Holiday calendar whose day long events will not be counted when evaluating.
Evaluate As User Local - Use User Local or UTC.
Returns - Boolean value indicating if the specified DateTime is a business day.
First Date - The first DateTime to evaluate.
Second Date - The second DateTime to evaluate.
Evaluate As User Local - Use User Local or UTC.
Returns - Boolean value indicating if the two specified DateTimes are on the same date.
Starting Date - Starting DateTime of the calculation.
Ending Date - Ending DateTime of the calculation.
Returns - A string presentation of the elapsed time, e.g. "2 months ago" or "5 hours ago".
Text To Convert - The text value to attempt to convert to a valid DateTime.
Returns - The converted DateTime value - if conversion fails a DateTime of 1/1/1 12:00:00 will be returned.
Returns - Boolean value indicating if the text was successfully converted.
Date To Format - The DateTime value to format.
Culture - The culture value used to format the result, e.g. "en-US" or "ja-JP".
Returns - A text representation of the specified DateTime based on the chosen culture.