To convert times of the format HHMM (Ex: 0024 = 00:24, 1345 = 13:45), select the entire
column of times (do not include headers or labels) and paste into the text box below. Press the
"Times" button to receive the times w/ colons in a column that you can copy and paste
back into the same program the dates came from (Excel, Stata, etc.).

"999" or "9999" times are not changed. Please contact me with questions: blsaenz@prbo.org.