If you work on Shift based then Shifty Android App would be very handy for you. Shifty helps you manage up to 4 shift patterns, displaying patterns of day-shift, night-shift and days off on a monthly calendar view. Once each shift pattern is configured you can visualise whether you (and your friends) are on day-shift, night-shift or have the day off for any date in the future.
Shifty Lite was developed for Android by SIM Consulting
Package name : com.sim.android.shiftylite.main.apk
File size: 366KB