Calculate Time Between Dates Spss

Click calculate the number of time units between two dates.

Calculate time between dates spss. If the time isn t included in the data you enter spss assumes zero hours and minutes midnight. Compute the difference between two dates. The duration calculator calculates the number of days months and years between two dates. Date of enrollment the date at which a person enrolled in college and bday the date of birth.

Subtract the two date values divide by 60 seconds 60 minutes 24 hours 365 25 days 12 months. Within this calendar a standard year consists of 365 days with a leap day being introduced to the month of february during a leap year. Or even the ctime days function. Examples of results in months.

To calculate the number of days between date1 and date2 use the following spss code. Duration between two dates calculates number of days. Examples of results in months. Compute days ctime days date2 date1.

Date calculator add or subtract days months years birthday calculator find when you are 1 billion seconds old. Here are the things you ve got to do to set up this dialog box so that it will compute the difference in days between two dates and save the results to a new variable. To begin click transform compute variable which will bring up the compute variable dialog box. If you don t want that extract the number of days between 2 dates and divide them by 365 25 like we did in how to compute age in spss.

Click calculate with dates and times and then click next. Compute days2 datediff date2 date1 days. You can choose a display format that includes or excludes the time but the information is always there. The months of april june september and november have 30 days while the rest have 31 days except for february which has 28 days in a standard year and 29 in a leap year.

The zero date in spss is the birth of the gregorian calendar in 1582. We will now specify how the new variable should be computed from our existing date variables in this calculation. So 2 years and 363 days are returned as 2 years and 0 days if years are chosen as the time unit. If the date in date1 is after the date in date2 the value in the variable days will be a negative number.