Time and Clocks

The INTNX function in SAS increments a date, time, or datetime value by a specified interval (such as day, month, or year) and returns the resulting value. INTCK counts the number of intervals between two dates.

INTNX advances a date, time, or datetime value by a given interval (month, quarter, year, etc.) and returns the new value. INTCK counts intervals between two dates. INTNX is for advancing, INTCK is for counting.

HOUR is the Excel time function that extracts the hour component (0-23) from a time serial number. GETHOUR and EHOUR are not valid Excel time functions.

NOW is the Excel function that returns the serial number of the current date and time. It updates dynamically each time the worksheet is recalculated. SYSDATE and SYSTIME are not valid Excel functions.

The TIME function returns a serial number representing a specific time when given hour, minute, and second arguments. Excel stores times as fractional parts of a day. NOW returns both date and time, DATE only handles dates.

The getTimer() function in ActionScript returns the number of milliseconds that have elapsed since the SWF (Shockwave Flash) file started playing. This is commonly used for animation timing, performance measurement, and creating time-based behaviors. The return value is in milliseconds, not seconds or minutes.

TTL (Time To Live) of 57 in a ping response indicates the network distance. Default TTL is often 64 for Windows systems. A value of 57 means the packet has passed through 7 network hops (64 - 57 = 7) to reach the destination. This is a normal network response.

The NOW() function in SQL returns the current system date and time together. It does not return date or time separately - those would be CURDATE() and CURTIME() respectively. The function exists in all major SQL databases.

The lead time for production Bus changes is 30 days. This is a standard organizational policy for production change management in data warehousing environments. Options like 5, 20, or 1 day would be insufficient for proper testing and deployment in production environments.

For Round Robin - Last Assigned distribution, the timestamp is set to 1/1/1900 to ensure all users appear as 'last assigned' a very long time ago. This creates an even starting point for the round-robin rotation.

In SAS, the DATE system option controls the display of the date and time in the header of SAS output. While TODAY, TIME, and DATETIME are functions or formats, DATE/NODATE are the system options that toggle this report header behavior.