ecoClock

It is an application which is helpful by the date and clock display corresponding to world each language, alarm, timer, stopwatch, event list display, the status display of a battery, the simple tool (compass, a spirit level, LED lighting, and calculator) that can be risen immediately, and various functions.
It is possible to change wallpaper freely.
Basically, operation and a display of a tool -- a single tap or swipe, and setup of a tool -- the double-tap.
The function is embedded in various places.
Please use it, enjoying yourself.
[Date]
The world's languages can be displayed in format
For more information or simple display can be switched
[Clock]
Display selection of digital or analog clock is possible.
Display switching function AM / PM or 24 hour
[Brightness Timer]
You can drop to the lowest brightness of the LCD backlight does not perform the specified time input, operations such as search.
That suppress the consumption of the battery even if you do not attempt to auto-lock setting screen starting 
ON / OFF with a single tap, config with a double tap.
You can revert to the standard brightness by sensing the shake of the body also.
[Auto Lock Timer]
You can delay the time you are free to specify automatic locking of the Setting. (Up to 60 minutes)
You can reset the lock automatic timer senses the shaking of the body also start setting screen ON / OFF, with a double tap with a single tap.
[Wallpaper]
You can save a photo as wallpaper on the spot and took photos in the Photo Library.
(Please set in the double-tap when you first start because it is not save the wallpaper.)
You can hide the tool icon temporarily. (Double-click the center of the screen)
[Alarm]
You can set alarms for up to three. (Switch by swiping to the right)
Alarms can be set only on specified days of the week every week. (Start screen, configured with double tap)
Snooze function.(Interval from 5 to 60 minutes)
Snooze function will continue until you stop the alarm.(Up to 12 times in the back ground)
Three types of alarm sound can be selected, at the same time vibration can be set (only iPhone)
[Timer]
You can set the timer for up to three. (Switch by swiping to the left)
Three types of alarm sound can be selected. (Start screen, configured with double tap)
[Stopwatch]
Can be measured up to 1/100 sec.
Swipe reset the start / stop, right at the single-tap
[Display of battery status]
Display of battery power remaining, the display during charging is possible.
[View schedule]
Calendar Schedule of iOS (90 days maximum) will be listed for the specified period from the date or the current time.
[Calculator]
Undo / redo functionality and memory of up to three
Tax rate calculation function (when you first start, please enter the tax rate.)
Calculation results can be copied to the clipboard.
[Compass](later iPhone3G, and iPad)
Switchable (compass pointed north) magnetic north, true north (north exact)
Horizontal instrument that can be measured with respect to a variety of device
Both instruments can be calibrated compass horizontal. (Measurement function relative data)
[Lighting LED] (later iPhone4)
LED lighting that can be used immediately launched
Lock mode can be switched or switch lights only while you hold it down.
Almost features are available free of charge. However, the advertisement indication may not expect an economy in power consumption effect to use a network and local information frequently.
Please pay the fee In-App Purchase, if you like this app. You can add many design and hide the ads.