solenthandbook.com 151 BST add one hour KEY: Full Moon New Moon DEC 2024 JAN 2025 ENGLAND, SOUTH COAST, PORTSMOUTH. LAT 50 0 48’N LONG 1 0 07’W TIME ZONE UT (GMT). TIMES & HEIGHTS OF HIGH & LOW WATER All times GMT. BST: +1 hour from 01:00 30 March - 02:00 26 October 2025 PORTSMOUTH TIDE TABLES 2024-25 PORTSMOUTH TIDE TABLES TIME m TIME m TIME m TIME m