| New Year's Day | Bank Holiday |  |
| 2nd January (Hogmanay) | | |
| Hanukkah Ends | Jewish Holiday | |
| Epiphany (The Three Wise Men Day) | Christian | |
| Orthodox Christmas | Orthodox | |
| Orthodox New Year | Orthodox | |
| Burns Night | | |
| Isra and Mi'raj | Muslim | |
| Chinese (Lunar) New Year | Observance | |
| Tu B'Shevat (Arbor Day) | Jewish Holiday | |
| Valentine's Day | Observance | |
| St. David's Day | | |
| Ramadan Begins | Muslim | |
| Carnival / Fat Tuesday | Christian | |
| Carnival/Ash Wednesday | Christian | |
| Overseas NHS Workers Day | Multiple Types | |
| Purim | Jewish Holiday | |
| St. Patrick's Day | | |
| March Equinox | Season | |
| Laylat al-Qadr (Night of Power) | Muslim | |
| Mothering Sunday | Observance | |
| Eid al-Fitr (End of Ramadan) | Muslim | |
| Palm Sunday | Christian | |
| Passover (First Day) | Jewish Holiday | |
| Maundy Thursday | Christian | |
| Orthodox Good Friday | Orthodox | |
| Good Friday | Bank Holiday | |
| Holy Saturday | Christian | |
| Orthodox Holy Saturday | Orthodox | |
| Passover (Last Day in Diaspora) | Jewish Holiday | |
| Orthodox Easter | Orthodox | |
| Easter | Observance, Christian | |
| Orthodox Easter Monday | Orthodox | |
| Easter Monday | | |
| Stephen Lawrence Day | Observance | |
| St. George's Day | Observance | |
| Yom HaShoah | Jewish Commemoration | |
| Yom Ha'atzmaut | Jewish Holiday | |
| Early May Bank Holiday | Bank Holiday | |
| Lag B'Omer | Jewish Holiday | |
| Spring Bank Holiday | Bank Holiday | |
| Ascension Day | Christian | |
| Shavuot | Jewish Holiday | |
| Eid al-Adha | Muslim | |
| Pentecost / Whit Sunday | Christian | |
| Whit Monday | Christian | |
| Queen's Birthday | Observance | |
| Trinity Sunday | Christian | |
| Father's Day | Observance | |
| Beer Day Britain | Multiple Types | |
| Corpus Christi | Christian | |
| June Solstice | Season | |
| Windrush Day | Observance | |
| Muharram / Islamic New Year | Muslim | |
| UK Armed Forces Day | Multiple Types | |
| Ashura | Muslim | |
| Battle of the Boyne | | |
| Yorkshire Day | Observance | |
| Tisha B'Av | Jewish Holiday | |
| Summer Bank Holiday | | |
| Assumption of Mary | Christian | |
| Summer Bank Holiday | | |
| Mawlid / Prophet's Birthday | Muslim | |
| September Equinox | Season | |
| Rosh Hashana | Jewish Holiday | |
| National Fitness Day | Multiple Types | |
| Black History Month | Observance | |
| Yom Kippur | Jewish Holiday | |
| Feast of St Francis of Assisi | Christian | |
| Teachers' Day | Observance | |
| Sukkot Starts | Jewish Holiday | |
| Hoshana Rabbah (Sukkot Ends) | Jewish Holiday | |
| Shemini Atzeret | Jewish Holiday | |
| Simchat Torah | Jewish Holiday | |
| Diwali | Observance | |
| Halloween | Observance | |
| All Saints' Day | Christian | |
| All Souls' Day | Christian | |
| Guy Fawkes Day | Observance | |
| Remembrance Sunday | Observance | |
| St. Andrew's Day | | |
| First Sunday of Advent | Observance | |
| St. Andrew's Day observed | | |
| Feast of the Immaculate Conception | Christian | |
| Hanukkah Starts | Jewish Holiday | |
| December Solstice | Season | |
| Hanukkah Ends | Jewish Holiday | |
| Christmas Eve | Observance | |
| Christmas Day | Bank Holiday | |
| Boxing Day | Bank Holiday | |
| New Year's Eve | Observance | |
