Insulin TimerFree insulin timer for tracking pre-meal injection timing. Counts down the wait period between injection and eating for rapid-acting and regular insulin. Start instantly.Frequently asked questionsHow long before a meal should rapid-acting insulin be taken?Rapid-acting analogues (Humalog, Novorapid, Apidra): typically 0-15 minutes before meals. Regular insulin: 30-45 minutes before meals. Your endocrinologist will specify your personal timing based on your glucose levels and response. This timer defaults to 30 minutes — adjust for your prescription.What happens if I eat before the insulin timer runs out?Eating before regular insulin has peaked can cause post-meal blood glucose spikes. Regular insulin takes 30-45 minutes to begin working effectively. Eating too early means food glucose enters the bloodstream before insulin is ready to process it.Should I check my blood sugar before starting the timer?Yes — if blood glucose is low before a meal, your prescriber may adjust your pre-meal timing or dose. Always check blood glucose before pre-meal injections and follow your diabetes management plan for adjustments based on current levels.What if my meal is delayed after I have already injected?If using rapid-acting insulin and the meal is significantly delayed, you risk hypoglycaemia. Have fast-acting glucose (juice, glucose tablets) available. Contact your diabetes team for guidance on managing delayed meals with your specific insulin regimen.Can I use this timer for basal insulin?Basal insulin (Lantus, Levemir, Tresiba) is not tied to meals — it is taken at the same time daily. This timer is primarily for meal-related (bolus) insulin timing. Use a daily alarm or calendar reminder for basal insulin instead.