I Ditched Google Calendar and Time Blocking — Here's Why

Time blocking worked for Mariana Vieira—until pregnancy in the first trimester made her energy and sleep patterns unpredictable. With random afternoon energy spikes, lethargy in the morning, and daily naps that repeatedly collided with scheduled work blocks, her calendar stopped matching reality. The result wasn’t just missed tasks; it became emotionally corrosive. Each time she checked her calendar, it reinforced a sense of failure because her system assumed stable energy and enough buffer time to absorb disruptions.

The breakdown also exposed a structural weakness in her setup: time blocks left little room for the new “interruptions” that became routine. When a nap hit between 2 p.m. and 3 p.m., any task scheduled in that window couldn’t be completed, and rescheduling became impossible because the calendar had no slack. Over time, the method that previously gave her a “budget for time” and a bird’s-eye view of her week stopped providing control. Instead, it highlighted mismatch—between what her calendar promised and what her body could deliver.

After abandoning calendar blocking, she switched to a Bullet Journal-style, list-based approach designed to tolerate fluctuations. Her new daily system is intentionally minimal: she writes down only three main tasks (plus any pre-scheduled appointments like meetings) and treats those as the only goals she must finish “today,” without assigning hour-by-hour deadlines. She also avoids weekly or monthly spreads, relying on a single page per day.

She uses a dot-and-cross method inspired by the classic Bullet Journal workflow: each task gets a dot, the dot is crossed out when completed, and any task not finished is migrated to the next day using an arrow symbol. At first, the simplicity felt underwhelming compared with the high-structure productivity she’d experienced earlier. But the method worked once she reduced expectations—she accepted that she couldn’t accomplish as much as before, then gradually rebuilt capacity.

Her output increased slowly: starting at three tasks per day (plus appointments), then moving to four, and eventually five. That incremental progress created a confidence “snowball effect.” Completing the daily list proved to her that she was still capable, which made it easier to take on more, which further strengthened confidence.

Now, she’s about six months into the list-based system and hasn’t returned to calendar blocking since around August/September. She still considers time blocking one of her best tools, but she’s not ready to use it again because her current life stage makes it unreliable. Looking ahead, she expects she may need to adapt—perhaps using time blocking only on focused work days, leaving several days intentionally empty, or even abandoning structure entirely for a period after the baby arrives. Her takeaway is blunt: there’s no universal “perfect” time management method. The right system is the one that fits current priorities, lifestyle, and energy realities—whether that’s time blocking, lists, or a hybrid approach.