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-rw-r--r--src/calcurse.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/calcurse.h b/src/calcurse.h
index 0c9b603..bd351d6 100644
--- a/src/calcurse.h
+++ b/src/calcurse.h
@@ -142,6 +142,7 @@
*/
#define DAYINSEC (DAYINMIN * MININSEC)
#define NEXTDAY(date) date_sec_change((date), 0, 1)
+#define PREVDAY(date) date_sec_change((date), 0, -1)
#define DAYLEN(date) (NEXTDAY(date) - (date))
#define ENDOFDAY(date) (NEXTDAY(date) - 1)
#define HOURINSEC (HOURINMIN * MININSEC)