Changing the time on your system

Year	BST Begins (clocks 1hr forward)	GMT Begins (clocks 1hr backwards)
2008	30 March	26 October
2009	29 March	25 October
2010	28 March	31 October
2011	27 March	30 October

Twice a year the clocks change between British Summer Time and Greenwich Mean Time. Your telephone system clock may need to be changed at these times. You can find instructions on how to update the time on a wide range of telephone systems listed below.

• Alcatel 4200
• Alcatel OmniPCX Office
• Ericsson BP250
• Ericsson MD110
• Avaya (Formerly SDX and Lucent) INDeX Range
• GPT PKS2 Range
• Mitel (Formerly Phillips, TSC) Imagination Range
• NEC Xn120
• Panasonic A-Series Range (A309, A616, A824, A1232)
• Panasonic DBS Range (DBS 38, DBS68, DBS90, DBS128, DBS 158, DBS180)
• Panasonic KXT1232
• Panasonic KXTA624
• Panasonic KXTE303
• Panasonic KXTE824
• Panasonic KXT308, KXT616
• Panasonic KXTD816, KXTD1232
• Panasonic New GX Range
• Panasonic SBS 416
• Panasonic SDBS 308, SDBS616
• Panasonic VP50, 100, 200 Voice processor
• Philips IPK Range
• Philips Sopho K Range
• Philips Sopho S Range
• Plessey (GPT) DXE Range
• Samsung Range of Systems
• SDX 40E
• SDX 60N, SDX420N
• Siemens Hicom 100 Range (110, 120, 125, 130)
• Siemens Hicom 100e Range (112, 118)
• Siemens Hicom Office Range v1.0
• Siemens Hicom Office Range v2.2
• Siemens Hicom 150e Range
• Siemens (formerly GPT) MDSS Range
• Siemens (Formerly GPT) NTX 6 / 8 / 24
• Toshiba DK16, DK40
• Toshiba DK24, DK24s, DK56, DK96, DK96L
• Toshiba DK280