Quantity   Component name
1 × Arduino Nano/Mini with ATmega168P
1 × ISL1208 RTC
1 × Perfboard
1 × SPST Switch
2 × 10K Resistor
2 × 4.7K Resistor
1 × USBasp ISP Programmer
1 × CR2450 Coin Cell
1 × CP2102 USB to Serial Module
1 × 32.768 KHz Crystal
1 × 4" x 4" Switch Box Or you can 3D print it
1 × Clear LED Dome
1 × Berg Connectors (M and F)
2 × SMD LEDs