Date: Simplify math

This commit is contained in:
Dylan Araps 2016-12-23 23:49:53 +11:00
parent eebef409fd
commit 9b448dac6a
1 changed files with 2 additions and 2 deletions

View File

@ -3018,8 +3018,8 @@ convert_time() {
# Calculate day of week.
# Source: http://blog.artofmemory.com/how-to-calculate-the-day-of-the-week-4203.html
year_code="$((${year/??} + $((${year/??} / 4)) % 7))"
week_day="$(($((year_code + month_code + 6 + day - ${leap_code:-0})) % 7))"
year_code="$((${year/??} + (${year/??} / 4) % 7))"
week_day="$(((year_code + month_code + 6 + day - leap_code) % 7))"
case "$week_day" in
0) week_day="Sun" ;;